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<div class="header">
  <div class="headertitle"><div class="title">gtest-port.cc</div></div>
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<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">// Copyright 2008, Google Inc.</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">// All rights reserved.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment">//</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment">// Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment">// modification, are permitted provided that the following conditions are</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment">// met:</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment">//</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment">//     * Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment">// notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment">//     * Redistributions in binary form must reproduce the above</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment">// copyright notice, this list of conditions and the following disclaimer</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment">// in the documentation and/or other materials provided with the</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment">// distribution.</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment">//     * Neither the name of Google Inc. nor the names of its</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment">// contributors may be used to endorse or promote products derived from</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment">// this software without specific prior written permission.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment">//</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment">// &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment">// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="comment">// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment">// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="comment">// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment">// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment">// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="comment">// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="comment">// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment">// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="preprocessor">#include &quot;gtest/internal/gtest-port.h&quot;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="preprocessor">#include &lt;limits.h&gt;</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="preprocessor">#include &lt;cstdint&gt;</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="preprocessor">#include &lt;fstream&gt;</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span> </div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="preprocessor">#if GTEST_OS_WINDOWS</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="preprocessor">#include &lt;io.h&gt;</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="preprocessor">#include &lt;sys/stat.h&gt;</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="preprocessor">#include &lt;windows.h&gt;</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="preprocessor">#include &lt;map&gt;</span>  <span class="comment">// Used in ThreadLocal.</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="preprocessor">#ifdef _MSC_VER</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="preprocessor">#include &lt;crtdbg.h&gt;</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="preprocessor">#endif  </span><span class="comment">// _MSC_VER</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="preprocessor">#include &lt;unistd.h&gt;</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_OS_WINDOWS</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span> </div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="preprocessor">#if GTEST_OS_MAC</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="preprocessor">#include &lt;mach/mach_init.h&gt;</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="preprocessor">#include &lt;mach/task.h&gt;</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="preprocessor">#include &lt;mach/vm_map.h&gt;</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_OS_MAC</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span> </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="preprocessor">#if GTEST_OS_DRAGONFLY || GTEST_OS_FREEBSD || GTEST_OS_GNU_KFREEBSD || \</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span><span class="preprocessor">    GTEST_OS_NETBSD || GTEST_OS_OPENBSD</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="preprocessor">#include &lt;sys/sysctl.h&gt;</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="preprocessor">#if GTEST_OS_DRAGONFLY || GTEST_OS_FREEBSD || GTEST_OS_GNU_KFREEBSD</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="preprocessor">#include &lt;sys/user.h&gt;</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="preprocessor">#if GTEST_OS_QNX</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="preprocessor">#include &lt;devctl.h&gt;</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="preprocessor">#include &lt;fcntl.h&gt;</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="preprocessor">#include &lt;sys/procfs.h&gt;</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_OS_QNX</span></div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span> </div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="preprocessor">#if GTEST_OS_AIX</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="preprocessor">#include &lt;procinfo.h&gt;</span></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="preprocessor">#include &lt;sys/types.h&gt;</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_OS_AIX</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="preprocessor">#if GTEST_OS_FUCHSIA</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="preprocessor">#include &lt;zircon/process.h&gt;</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="preprocessor">#include &lt;zircon/syscalls.h&gt;</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_OS_FUCHSIA</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span> </div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="preprocessor">#include &quot;gtest/gtest-message.h&quot;</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="preprocessor">#include &quot;gtest/gtest-spi.h&quot;</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="preprocessor">#include &quot;gtest/internal/gtest-internal.h&quot;</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="preprocessor">#include &quot;gtest/internal/gtest-string.h&quot;</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="preprocessor">#include &quot;src/gtest-internal-inl.h&quot;</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span> </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="keyword">namespace </span>testing {</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="keyword">namespace </span>internal {</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="preprocessor">#if GTEST_OS_LINUX || GTEST_OS_GNU_HURD</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span> </div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="keyword">namespace </span>{</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>T ReadProcFileField(<span class="keyword">const</span> std::string&amp; filename, <span class="keywordtype">int</span> field) {</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>  std::string dummy;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>  std::ifstream file(filename.c_str());</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>  <span class="keywordflow">while</span> (field-- &gt; 0) {</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>    file &gt;&gt; dummy;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>  }</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>  T output = 0;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>  file &gt;&gt; output;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>  <span class="keywordflow">return</span> output;</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>}</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>}  <span class="comment">// namespace</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span> </div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment">// Returns the number of active threads, or 0 when there is an error.</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="keywordtype">size_t</span> GetThreadCount() {</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>  <span class="keyword">const</span> std::string filename =</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>      (Message() &lt;&lt; <span class="stringliteral">&quot;/proc/&quot;</span> &lt;&lt; getpid() &lt;&lt; <span class="stringliteral">&quot;/stat&quot;</span>).GetString();</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>  <span class="keywordflow">return</span> ReadProcFileField&lt;size_t&gt;(filename, 19);</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>}</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span> </div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="preprocessor">#elif GTEST_OS_MAC</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span> </div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="keywordtype">size_t</span> GetThreadCount() {</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>  <span class="keyword">const</span> task_t task = mach_task_self();</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>  mach_msg_type_number_t thread_count;</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>  thread_act_array_t thread_list;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>  <span class="keyword">const</span> kern_return_t status = task_threads(task, &amp;thread_list, &amp;thread_count);</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>  <span class="keywordflow">if</span> (status == KERN_SUCCESS) {</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span>    <span class="comment">// task_threads allocates resources in thread_list and we need to free them</span></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>    <span class="comment">// to avoid leaks.</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>    vm_deallocate(task, <span class="keyword">reinterpret_cast&lt;</span>vm_address_t<span class="keyword">&gt;</span>(thread_list),</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span>                  <span class="keyword">sizeof</span>(thread_t) * thread_count);</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(thread_count);</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>  }</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>}</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span> </div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="preprocessor">#elif GTEST_OS_DRAGONFLY || GTEST_OS_FREEBSD || GTEST_OS_GNU_KFREEBSD || \</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="preprocessor">    GTEST_OS_NETBSD</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span> </div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="preprocessor">#if GTEST_OS_NETBSD</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="preprocessor">#undef KERN_PROC</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="preprocessor">#define KERN_PROC KERN_PROC2</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="preprocessor">#define kinfo_proc kinfo_proc2</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span> </div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="preprocessor">#if GTEST_OS_DRAGONFLY</span></div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="preprocessor">#define KP_NLWP(kp) (kp.kp_nthreads)</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="preprocessor">#elif GTEST_OS_FREEBSD || GTEST_OS_GNU_KFREEBSD</span></div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="preprocessor">#define KP_NLWP(kp) (kp.ki_numthreads)</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="preprocessor">#elif GTEST_OS_NETBSD</span></div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="preprocessor">#define KP_NLWP(kp) (kp.p_nlwps)</span></div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span> </div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment">// Returns the number of threads running in the process, or 0 to indicate that</span></div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment">// we cannot detect it.</span></div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="keywordtype">size_t</span> GetThreadCount() {</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>  <span class="keywordtype">int</span> mib[] = {</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>    CTL_KERN,</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>    KERN_PROC,</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>    KERN_PROC_PID,</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>    getpid(),</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="preprocessor">#if GTEST_OS_NETBSD</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>    <span class="keyword">sizeof</span>(<span class="keyword">struct </span>kinfo_proc),</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>    1,</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>#endif</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span>  };</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>  u_int miblen = <span class="keyword">sizeof</span>(mib) / <span class="keyword">sizeof</span>(mib[0]);</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>  <span class="keyword">struct </span>kinfo_proc info;</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>  <span class="keywordtype">size_t</span> size = <span class="keyword">sizeof</span>(info);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>  <span class="keywordflow">if</span> (sysctl(mib, miblen, &amp;info, &amp;size, NULL, 0)) {</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>  }</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(KP_NLWP(info));</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>}</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span><span class="preprocessor">#elif GTEST_OS_OPENBSD</span></div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span> </div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment">// Returns the number of threads running in the process, or 0 to indicate that</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span><span class="comment">// we cannot detect it.</span></div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="keywordtype">size_t</span> GetThreadCount() {</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>  <span class="keywordtype">int</span> mib[] = {</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>      CTL_KERN,</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>      KERN_PROC,</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>      KERN_PROC_PID | KERN_PROC_SHOW_THREADS,</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>      getpid(),</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>      <span class="keyword">sizeof</span>(<span class="keyword">struct </span>kinfo_proc),</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>      0,</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>  };</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>  u_int miblen = <span class="keyword">sizeof</span>(mib) / <span class="keyword">sizeof</span>(mib[0]);</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span> </div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>  <span class="comment">// get number of structs</span></div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>  <span class="keywordtype">size_t</span> size;</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span>  <span class="keywordflow">if</span> (sysctl(mib, miblen, NULL, &amp;size, NULL, 0)) {</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>  }</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span> </div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>  mib[5] = <span class="keyword">static_cast&lt;</span><span class="keywordtype">int</span><span class="keyword">&gt;</span>(size / <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(mib[4]));</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span> </div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span>  <span class="comment">// populate array of structs</span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span>  <span class="keyword">struct </span>kinfo_proc info[mib[5]];</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span>  <span class="keywordflow">if</span> (sysctl(mib, miblen, &amp;info, &amp;size, NULL, 0)) {</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>  }</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span> </div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span>  <span class="comment">// exclude empty members</span></div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>  <span class="keywordtype">size_t</span> nthreads = 0;</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; size / <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(mib[4]); i++) {</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>    <span class="keywordflow">if</span> (info[i].p_tid != -1) nthreads++;</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>  }</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>  <span class="keywordflow">return</span> nthreads;</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>}</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span> </div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="preprocessor">#elif GTEST_OS_QNX</span></div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span> </div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment">// Returns the number of threads running in the process, or 0 to indicate that</span></div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment">// we cannot detect it.</span></div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="keywordtype">size_t</span> GetThreadCount() {</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> fd = open(<span class="stringliteral">&quot;/proc/self/as&quot;</span>, O_RDONLY);</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>  <span class="keywordflow">if</span> (fd &lt; 0) {</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>  }</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>  procfs_info process_info;</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> status =</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>      devctl(fd, DCMD_PROC_INFO, &amp;process_info, <span class="keyword">sizeof</span>(process_info), <span class="keyword">nullptr</span>);</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>  close(fd);</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>  <span class="keywordflow">if</span> (status == EOK) {</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(process_info.num_threads);</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>  }</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span>}</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span> </div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span><span class="preprocessor">#elif GTEST_OS_AIX</span></div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span> </div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="keywordtype">size_t</span> GetThreadCount() {</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>  <span class="keyword">struct </span>procentry64 entry;</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span>  pid_t pid = getpid();</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>  <span class="keywordtype">int</span> status = getprocs64(&amp;entry, <span class="keyword">sizeof</span>(entry), <span class="keyword">nullptr</span>, 0, &amp;pid, 1);</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>  <span class="keywordflow">if</span> (status == 1) {</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span>    <span class="keywordflow">return</span> entry.pi_thcount;</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>  }</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>}</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span> </div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="preprocessor">#elif GTEST_OS_FUCHSIA</span></div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span> </div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="keywordtype">size_t</span> GetThreadCount() {</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>  <span class="keywordtype">int</span> dummy_buffer;</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span>  <span class="keywordtype">size_t</span> avail;</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>  zx_status_t status =</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span>      zx_object_get_info(zx_process_self(), ZX_INFO_PROCESS_THREADS,</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span>                         &amp;dummy_buffer, 0, <span class="keyword">nullptr</span>, &amp;avail);</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span>  <span class="keywordflow">if</span> (status == ZX_OK) {</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span>    <span class="keywordflow">return</span> avail;</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>  }</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>}</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span> </div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span> </div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="keywordtype">size_t</span> GetThreadCount() {</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span>  <span class="comment">// There&#39;s no portable way to detect the number of threads, so we just</span></div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span>  <span class="comment">// return 0 to indicate that we cannot detect it.</span></div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span>}</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span> </div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_OS_LINUX</span></div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span> </div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="preprocessor">#if GTEST_IS_THREADSAFE &amp;&amp; GTEST_OS_WINDOWS</span></div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span> </div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span>AutoHandle::AutoHandle() : handle_(INVALID_HANDLE_VALUE) {}</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span> </div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span>AutoHandle::AutoHandle(Handle handle) : handle_(handle) {}</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span> </div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span>AutoHandle::~AutoHandle() { Reset(); }</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span> </div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span>AutoHandle::Handle AutoHandle::Get()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> handle_; }</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span> </div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span><span class="keywordtype">void</span> AutoHandle::Reset() { Reset(INVALID_HANDLE_VALUE); }</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span> </div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span><span class="keywordtype">void</span> AutoHandle::Reset(HANDLE handle) {</div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span>  <span class="comment">// Resetting with the same handle we already own is invalid.</span></div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span>  <span class="keywordflow">if</span> (handle_ != handle) {</div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span>    <span class="keywordflow">if</span> (IsCloseable()) {</div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span>      ::CloseHandle(handle_);</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span>    }</div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span>    handle_ = handle;</div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span>    GTEST_CHECK_(!IsCloseable())</div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span>        &lt;&lt; <span class="stringliteral">&quot;Resetting a valid handle to itself is likely a programmer error &quot;</span></div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span>           <span class="stringliteral">&quot;and thus not allowed.&quot;</span>;</div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span>  }</div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span>}</div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span> </div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="keywordtype">bool</span> AutoHandle::IsCloseable()<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span>  <span class="comment">// Different Windows APIs may use either of these values to represent an</span></div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span>  <span class="comment">// invalid handle.</span></div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>  <span class="keywordflow">return</span> handle_ != <span class="keyword">nullptr</span> &amp;&amp; handle_ != INVALID_HANDLE_VALUE;</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span>}</div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span> </div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span>Mutex::Mutex()</div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span>    : owner_thread_id_(0),</div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span>      type_(kDynamic),</div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span>      critical_section_init_phase_(0),</div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span>      critical_section_(new CRITICAL_SECTION) {</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span>  ::InitializeCriticalSection(critical_section_);</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span>}</div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span> </div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span>Mutex::~Mutex() {</div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span>  <span class="comment">// Static mutexes are leaked intentionally. It is not thread-safe to try</span></div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span>  <span class="comment">// to clean them up.</span></div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span>  <span class="keywordflow">if</span> (type_ == kDynamic) {</div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span>    ::DeleteCriticalSection(critical_section_);</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span>    <span class="keyword">delete</span> critical_section_;</div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span>    critical_section_ = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span>  }</div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span>}</div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span> </div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="keywordtype">void</span> Mutex::Lock() {</div>
<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span>  ThreadSafeLazyInit();</div>
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span>  ::EnterCriticalSection(critical_section_);</div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span>  owner_thread_id_ = ::GetCurrentThreadId();</div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span>}</div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span> </div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="keywordtype">void</span> Mutex::Unlock() {</div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span>  ThreadSafeLazyInit();</div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span>  <span class="comment">// We don&#39;t protect writing to owner_thread_id_ here, as it&#39;s the</span></div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span>  <span class="comment">// caller&#39;s responsibility to ensure that the current thread holds the</span></div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span>  <span class="comment">// mutex when this is called.</span></div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span>  owner_thread_id_ = 0;</div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span>  ::LeaveCriticalSection(critical_section_);</div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span>}</div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span> </div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment">// Does nothing if the current thread holds the mutex. Otherwise, crashes</span></div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment">// with high probability.</span></div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="keywordtype">void</span> Mutex::AssertHeld() {</div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span>  ThreadSafeLazyInit();</div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span>  GTEST_CHECK_(owner_thread_id_ == ::GetCurrentThreadId())</div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span>      &lt;&lt; <span class="stringliteral">&quot;The current thread is not holding the mutex @&quot;</span> &lt;&lt; <span class="keyword">this</span>;</div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span>}</div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span> </div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span><span class="keyword">namespace </span>{</div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span> </div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="preprocessor">#ifdef _MSC_VER</span></div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment">// Use the RAII idiom to flag mem allocs that are intentionally never</span></div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span><span class="comment">// deallocated. The motivation is to silence the false positive mem leaks</span></div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="comment">// that are reported by the debug version of MS&#39;s CRT which can only detect</span></div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span><span class="comment">// if an alloc is missing a matching deallocation.</span></div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment">// Example:</span></div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment">//    MemoryIsNotDeallocated memory_is_not_deallocated;</span></div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment">//    critical_section_ = new CRITICAL_SECTION;</span></div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span><span class="comment">//</span></div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="keyword">class </span>MemoryIsNotDeallocated {</div>
<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span>  MemoryIsNotDeallocated() : old_crtdbg_flag_(0) {</div>
<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span>    old_crtdbg_flag_ = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);</div>
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span>    <span class="comment">// Set heap allocation block type to _IGNORE_BLOCK so that MS debug CRT</span></div>
<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span>    <span class="comment">// doesn&#39;t report mem leak if there&#39;s no matching deallocation.</span></div>
<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span>    (void)_CrtSetDbgFlag(old_crtdbg_flag_ &amp; ~_CRTDBG_ALLOC_MEM_DF);</div>
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span>  }</div>
<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span> </div>
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span>  ~MemoryIsNotDeallocated() {</div>
<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span>    <span class="comment">// Restore the original _CRTDBG_ALLOC_MEM_DF flag</span></div>
<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span>    (void)_CrtSetDbgFlag(old_crtdbg_flag_);</div>
<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span>  }</div>
<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span> </div>
<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span>  <span class="keywordtype">int</span> old_crtdbg_flag_;</div>
<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span> </div>
<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span>  MemoryIsNotDeallocated(<span class="keyword">const</span> MemoryIsNotDeallocated&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span>  MemoryIsNotDeallocated&amp; operator=(<span class="keyword">const</span> MemoryIsNotDeallocated&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span>};</div>
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span><span class="preprocessor">#endif  </span><span class="comment">// _MSC_VER</span></div>
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span> </div>
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span>}  <span class="comment">// namespace</span></div>
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span> </div>
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span><span class="comment">// Initializes owner_thread_id_ and critical_section_ in static mutexes.</span></div>
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span><span class="keywordtype">void</span> Mutex::ThreadSafeLazyInit() {</div>
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span>  <span class="comment">// Dynamic mutexes are initialized in the constructor.</span></div>
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span>  <span class="keywordflow">if</span> (type_ == kStatic) {</div>
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span>    <span class="keywordflow">switch</span> (</div>
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span>        ::InterlockedCompareExchange(&amp;critical_section_init_phase_, 1L, 0L)) {</div>
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span>      <span class="keywordflow">case</span> 0:</div>
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span>        <span class="comment">// If critical_section_init_phase_ was 0 before the exchange, we</span></div>
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span>        <span class="comment">// are the first to test it and need to perform the initialization.</span></div>
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span>        owner_thread_id_ = 0;</div>
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span>        {</div>
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span>          <span class="comment">// Use RAII to flag that following mem alloc is never deallocated.</span></div>
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span><span class="preprocessor">#ifdef _MSC_VER</span></div>
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span>          MemoryIsNotDeallocated memory_is_not_deallocated;</div>
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span><span class="preprocessor">#endif  </span><span class="comment">// _MSC_VER</span></div>
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span>          critical_section_ = <span class="keyword">new</span> CRITICAL_SECTION;</div>
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span>        }</div>
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span>        ::InitializeCriticalSection(critical_section_);</div>
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span>        <span class="comment">// Updates the critical_section_init_phase_ to 2 to signal</span></div>
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span>        <span class="comment">// initialization complete.</span></div>
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span>        GTEST_CHECK_(::InterlockedCompareExchange(&amp;critical_section_init_phase_,</div>
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span>                                                  2L, 1L) == 1L);</div>
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span>        <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span>      <span class="keywordflow">case</span> 1:</div>
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span>        <span class="comment">// Somebody else is already initializing the mutex; spin until they</span></div>
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span>        <span class="comment">// are done.</span></div>
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span>        <span class="keywordflow">while</span> (::InterlockedCompareExchange(&amp;critical_section_init_phase_, 2L,</div>
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span>                                            2L) != 2L) {</div>
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span>          <span class="comment">// Possibly yields the rest of the thread&#39;s time slice to other</span></div>
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span>          <span class="comment">// threads.</span></div>
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span>          ::Sleep(0);</div>
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span>        }</div>
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span>        <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span> </div>
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span>      <span class="keywordflow">case</span> 2:</div>
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span>        <span class="keywordflow">break</span>;  <span class="comment">// The mutex is already initialized and ready for use.</span></div>
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span> </div>
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span>      <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span>        GTEST_CHECK_(<span class="keyword">false</span>)</div>
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span>            &lt;&lt; <span class="stringliteral">&quot;Unexpected value of critical_section_init_phase_ &quot;</span></div>
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span>            &lt;&lt; <span class="stringliteral">&quot;while initializing a static mutex.&quot;</span>;</div>
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span>    }</div>
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span>  }</div>
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span>}</div>
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span> </div>
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span><span class="keyword">namespace </span>{</div>
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span> </div>
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span><span class="keyword">class </span>ThreadWithParamSupport : <span class="keyword">public</span> ThreadWithParamBase {</div>
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span>  <span class="keyword">static</span> HANDLE CreateThread(Runnable* runnable,</div>
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span>                             Notification* thread_can_start) {</div>
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span>    ThreadMainParam* param = <span class="keyword">new</span> ThreadMainParam(runnable, thread_can_start);</div>
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span>    DWORD thread_id;</div>
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span>    HANDLE thread_handle = ::CreateThread(</div>
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span>        <span class="keyword">nullptr</span>,  <span class="comment">// Default security.</span></div>
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span>        0,        <span class="comment">// Default stack size.</span></div>
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span>        &amp;ThreadWithParamSupport::ThreadMain,</div>
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span>        param,        <span class="comment">// Parameter to ThreadMainStatic</span></div>
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span>        0x0,          <span class="comment">// Default creation flags.</span></div>
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span>        &amp;thread_id);  <span class="comment">// Need a valid pointer for the call to work under Win98.</span></div>
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span>    GTEST_CHECK_(thread_handle != <span class="keyword">nullptr</span>)</div>
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span>        &lt;&lt; <span class="stringliteral">&quot;CreateThread failed with error &quot;</span> &lt;&lt; ::GetLastError() &lt;&lt; <span class="stringliteral">&quot;.&quot;</span>;</div>
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span>    <span class="keywordflow">if</span> (thread_handle == <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span>      <span class="keyword">delete</span> param;</div>
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span>    }</div>
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span>    <span class="keywordflow">return</span> thread_handle;</div>
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span>  }</div>
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span> </div>
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span>  <span class="keyword">struct </span>ThreadMainParam {</div>
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span>    ThreadMainParam(Runnable* runnable, Notification* thread_can_start)</div>
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span>        : runnable_(runnable), thread_can_start_(thread_can_start) {}</div>
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span>    std::unique_ptr&lt;Runnable&gt; runnable_;</div>
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span>    <span class="comment">// Does not own.</span></div>
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span>    Notification* thread_can_start_;</div>
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span>  };</div>
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span> </div>
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span>  <span class="keyword">static</span> DWORD WINAPI ThreadMain(<span class="keywordtype">void</span>* ptr) {</div>
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span>    <span class="comment">// Transfers ownership.</span></div>
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span>    std::unique_ptr&lt;ThreadMainParam&gt; param(<span class="keyword">static_cast&lt;</span>ThreadMainParam*<span class="keyword">&gt;</span>(ptr));</div>
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span>    <span class="keywordflow">if</span> (param-&gt;thread_can_start_ != <span class="keyword">nullptr</span>)</div>
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span>      param-&gt;thread_can_start_-&gt;WaitForNotification();</div>
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>    param-&gt;runnable_-&gt;Run();</div>
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span>  }</div>
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span> </div>
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span>  <span class="comment">// Prohibit instantiation.</span></div>
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span>  ThreadWithParamSupport();</div>
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span> </div>
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span>  ThreadWithParamSupport(<span class="keyword">const</span> ThreadWithParamSupport&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span>  ThreadWithParamSupport&amp; operator=(<span class="keyword">const</span> ThreadWithParamSupport&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span>};</div>
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span> </div>
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span>}  <span class="comment">// namespace</span></div>
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span> </div>
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span>ThreadWithParamBase::ThreadWithParamBase(Runnable* runnable,</div>
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span>                                         Notification* thread_can_start)</div>
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span>    : thread_(</div>
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span>          ThreadWithParamSupport::CreateThread(runnable, thread_can_start)) {}</div>
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span> </div>
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span>ThreadWithParamBase::~ThreadWithParamBase() { Join(); }</div>
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span> </div>
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span><span class="keywordtype">void</span> ThreadWithParamBase::Join() {</div>
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span>  GTEST_CHECK_(::WaitForSingleObject(thread_.Get(), INFINITE) == WAIT_OBJECT_0)</div>
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span>      &lt;&lt; <span class="stringliteral">&quot;Failed to join the thread with error &quot;</span> &lt;&lt; ::GetLastError() &lt;&lt; <span class="stringliteral">&quot;.&quot;</span>;</div>
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span>}</div>
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span> </div>
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span><span class="comment">// Maps a thread to a set of ThreadIdToThreadLocals that have values</span></div>
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span><span class="comment">// instantiated on that thread and notifies them when the thread exits.  A</span></div>
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span><span class="comment">// ThreadLocal instance is expected to persist until all threads it has</span></div>
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span><span class="comment">// values on have terminated.</span></div>
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span><span class="keyword">class </span>ThreadLocalRegistryImpl {</div>
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span>  <span class="comment">// Registers thread_local_instance as having value on the current thread.</span></div>
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span>  <span class="comment">// Returns a value that can be used to identify the thread from other threads.</span></div>
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span>  <span class="keyword">static</span> ThreadLocalValueHolderBase* GetValueOnCurrentThread(</div>
<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span>      <span class="keyword">const</span> ThreadLocalBase* thread_local_instance) {</div>
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span><span class="preprocessor">#ifdef _MSC_VER</span></div>
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span>    MemoryIsNotDeallocated memory_is_not_deallocated;</div>
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span><span class="preprocessor">#endif  </span><span class="comment">// _MSC_VER</span></div>
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span>    DWORD current_thread = ::GetCurrentThreadId();</div>
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span>    MutexLock lock(&amp;mutex_);</div>
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span>    ThreadIdToThreadLocals* <span class="keyword">const</span> thread_to_thread_locals =</div>
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span>        GetThreadLocalsMapLocked();</div>
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span>    ThreadIdToThreadLocals::iterator thread_local_pos =</div>
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span>        thread_to_thread_locals-&gt;find(current_thread);</div>
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span>    <span class="keywordflow">if</span> (thread_local_pos == thread_to_thread_locals-&gt;end()) {</div>
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span>      thread_local_pos =</div>
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span>          thread_to_thread_locals</div>
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span>              -&gt;insert(std::make_pair(current_thread, ThreadLocalValues()))</div>
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span>              .first;</div>
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span>      StartWatcherThreadFor(current_thread);</div>
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span>    }</div>
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span>    ThreadLocalValues&amp; thread_local_values = thread_local_pos-&gt;second;</div>
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span>    ThreadLocalValues::iterator value_pos =</div>
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span>        thread_local_values.find(thread_local_instance);</div>
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span>    <span class="keywordflow">if</span> (value_pos == thread_local_values.end()) {</div>
<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span>      value_pos =</div>
<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span>          thread_local_values</div>
<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span>              .insert(std::make_pair(</div>
<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span>                  thread_local_instance,</div>
<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span>                  std::shared_ptr&lt;ThreadLocalValueHolderBase&gt;(</div>
<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span>                      thread_local_instance-&gt;NewValueForCurrentThread())))</div>
<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span>              .first;</div>
<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span>    }</div>
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span>    <span class="keywordflow">return</span> value_pos-&gt;second.get();</div>
<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span>  }</div>
<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span> </div>
<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> OnThreadLocalDestroyed(</div>
<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span>      <span class="keyword">const</span> ThreadLocalBase* thread_local_instance) {</div>
<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span>    std::vector&lt;std::shared_ptr&lt;ThreadLocalValueHolderBase&gt; &gt; value_holders;</div>
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span>    <span class="comment">// Clean up the ThreadLocalValues data structure while holding the lock, but</span></div>
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span>    <span class="comment">// defer the destruction of the ThreadLocalValueHolderBases.</span></div>
<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span>    {</div>
<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span>      MutexLock lock(&amp;mutex_);</div>
<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span>      ThreadIdToThreadLocals* <span class="keyword">const</span> thread_to_thread_locals =</div>
<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span>          GetThreadLocalsMapLocked();</div>
<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span>      <span class="keywordflow">for</span> (ThreadIdToThreadLocals::iterator it =</div>
<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span>               thread_to_thread_locals-&gt;begin();</div>
<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span>           it != thread_to_thread_locals-&gt;end(); ++it) {</div>
<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span>        ThreadLocalValues&amp; thread_local_values = it-&gt;second;</div>
<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span>        ThreadLocalValues::iterator value_pos =</div>
<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span>            thread_local_values.find(thread_local_instance);</div>
<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span>        <span class="keywordflow">if</span> (value_pos != thread_local_values.end()) {</div>
<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span>          value_holders.push_back(value_pos-&gt;second);</div>
<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span>          thread_local_values.erase(value_pos);</div>
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span>          <span class="comment">// This &#39;if&#39; can only be successful at most once, so theoretically we</span></div>
<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span>          <span class="comment">// could break out of the loop here, but we don&#39;t bother doing so.</span></div>
<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span>        }</div>
<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span>      }</div>
<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span>    }</div>
<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span>    <span class="comment">// Outside the lock, let the destructor for &#39;value_holders&#39; deallocate the</span></div>
<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span>    <span class="comment">// ThreadLocalValueHolderBases.</span></div>
<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span>  }</div>
<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span> </div>
<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> OnThreadExit(DWORD thread_id) {</div>
<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span>    GTEST_CHECK_(thread_id != 0) &lt;&lt; ::GetLastError();</div>
<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span>    std::vector&lt;std::shared_ptr&lt;ThreadLocalValueHolderBase&gt; &gt; value_holders;</div>
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span>    <span class="comment">// Clean up the ThreadIdToThreadLocals data structure while holding the</span></div>
<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span>    <span class="comment">// lock, but defer the destruction of the ThreadLocalValueHolderBases.</span></div>
<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span>    {</div>
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span>      MutexLock lock(&amp;mutex_);</div>
<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span>      ThreadIdToThreadLocals* <span class="keyword">const</span> thread_to_thread_locals =</div>
<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span>          GetThreadLocalsMapLocked();</div>
<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span>      ThreadIdToThreadLocals::iterator thread_local_pos =</div>
<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span>          thread_to_thread_locals-&gt;find(thread_id);</div>
<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span>      <span class="keywordflow">if</span> (thread_local_pos != thread_to_thread_locals-&gt;end()) {</div>
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span>        ThreadLocalValues&amp; thread_local_values = thread_local_pos-&gt;second;</div>
<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span>        <span class="keywordflow">for</span> (ThreadLocalValues::iterator value_pos =</div>
<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span>                 thread_local_values.begin();</div>
<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span>             value_pos != thread_local_values.end(); ++value_pos) {</div>
<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span>          value_holders.push_back(value_pos-&gt;second);</div>
<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span>        }</div>
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span>        thread_to_thread_locals-&gt;erase(thread_local_pos);</div>
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span>      }</div>
<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span>    }</div>
<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span>    <span class="comment">// Outside the lock, let the destructor for &#39;value_holders&#39; deallocate the</span></div>
<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span>    <span class="comment">// ThreadLocalValueHolderBases.</span></div>
<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span>  }</div>
<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span> </div>
<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span>  <span class="comment">// In a particular thread, maps a ThreadLocal object to its value.</span></div>
<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span>  <span class="keyword">typedef</span> std::map&lt;<span class="keyword">const</span> ThreadLocalBase*,</div>
<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span>                   std::shared_ptr&lt;ThreadLocalValueHolderBase&gt; &gt;</div>
<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span>      ThreadLocalValues;</div>
<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span>  <span class="comment">// Stores all ThreadIdToThreadLocals having values in a thread, indexed by</span></div>
<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span>  <span class="comment">// thread&#39;s ID.</span></div>
<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span>  <span class="keyword">typedef</span> std::map&lt;DWORD, ThreadLocalValues&gt; ThreadIdToThreadLocals;</div>
<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span> </div>
<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span>  <span class="comment">// Holds the thread id and thread handle that we pass from</span></div>
<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span>  <span class="comment">// StartWatcherThreadFor to WatcherThreadFunc.</span></div>
<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span>  <span class="keyword">typedef</span> std::pair&lt;DWORD, HANDLE&gt; ThreadIdAndHandle;</div>
<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span> </div>
<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> StartWatcherThreadFor(DWORD thread_id) {</div>
<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span>    <span class="comment">// The returned handle will be kept in thread_map and closed by</span></div>
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span>    <span class="comment">// watcher_thread in WatcherThreadFunc.</span></div>
<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span>    HANDLE thread =</div>
<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span>        ::OpenThread(SYNCHRONIZE | THREAD_QUERY_INFORMATION, FALSE, thread_id);</div>
<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span>    GTEST_CHECK_(thread != <span class="keyword">nullptr</span>);</div>
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span>    <span class="comment">// We need to pass a valid thread ID pointer into CreateThread for it</span></div>
<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span>    <span class="comment">// to work correctly under Win98.</span></div>
<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span>    DWORD watcher_thread_id;</div>
<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span>    HANDLE watcher_thread = ::CreateThread(</div>
<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span>        <span class="keyword">nullptr</span>,  <span class="comment">// Default security.</span></div>
<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span>        0,        <span class="comment">// Default stack size</span></div>
<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span>        &amp;ThreadLocalRegistryImpl::WatcherThreadFunc,</div>
<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span>        <span class="keyword">reinterpret_cast&lt;</span>LPVOID<span class="keyword">&gt;</span>(<span class="keyword">new</span> ThreadIdAndHandle(thread_id, thread)),</div>
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span>        CREATE_SUSPENDED, &amp;watcher_thread_id);</div>
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span>    GTEST_CHECK_(watcher_thread != <span class="keyword">nullptr</span>)</div>
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span>        &lt;&lt; <span class="stringliteral">&quot;CreateThread failed with error &quot;</span> &lt;&lt; ::GetLastError() &lt;&lt; <span class="stringliteral">&quot;.&quot;</span>;</div>
<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span>    <span class="comment">// Give the watcher thread the same priority as ours to avoid being</span></div>
<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span>    <span class="comment">// blocked by it.</span></div>
<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span>    ::SetThreadPriority(watcher_thread,</div>
<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span>                        ::GetThreadPriority(::GetCurrentThread()));</div>
<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span>    ::ResumeThread(watcher_thread);</div>
<div class="line"><a id="l00610" name="l00610"></a><span class="lineno">  610</span>    ::CloseHandle(watcher_thread);</div>
<div class="line"><a id="l00611" name="l00611"></a><span class="lineno">  611</span>  }</div>
<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span> </div>
<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span>  <span class="comment">// Monitors exit from a given thread and notifies those</span></div>
<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span>  <span class="comment">// ThreadIdToThreadLocals about thread termination.</span></div>
<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span>  <span class="keyword">static</span> DWORD WINAPI WatcherThreadFunc(LPVOID param) {</div>
<div class="line"><a id="l00616" name="l00616"></a><span class="lineno">  616</span>    <span class="keyword">const</span> ThreadIdAndHandle* tah =</div>
<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span>        <span class="keyword">reinterpret_cast&lt;</span><span class="keyword">const </span>ThreadIdAndHandle*<span class="keyword">&gt;</span>(param);</div>
<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span>    GTEST_CHECK_(::WaitForSingleObject(tah-&gt;second, INFINITE) == WAIT_OBJECT_0);</div>
<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span>    OnThreadExit(tah-&gt;first);</div>
<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span>    ::CloseHandle(tah-&gt;second);</div>
<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span>    <span class="keyword">delete</span> tah;</div>
<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span>  }</div>
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span> </div>
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span>  <span class="comment">// Returns map of thread local instances.</span></div>
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span>  <span class="keyword">static</span> ThreadIdToThreadLocals* GetThreadLocalsMapLocked() {</div>
<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span>    mutex_.AssertHeld();</div>
<div class="line"><a id="l00628" name="l00628"></a><span class="lineno">  628</span><span class="preprocessor">#ifdef _MSC_VER</span></div>
<div class="line"><a id="l00629" name="l00629"></a><span class="lineno">  629</span>    MemoryIsNotDeallocated memory_is_not_deallocated;</div>
<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span><span class="preprocessor">#endif  </span><span class="comment">// _MSC_VER</span></div>
<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span>    <span class="keyword">static</span> ThreadIdToThreadLocals* map = <span class="keyword">new</span> ThreadIdToThreadLocals();</div>
<div class="line"><a id="l00632" name="l00632"></a><span class="lineno">  632</span>    <span class="keywordflow">return</span> map;</div>
<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span>  }</div>
<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span> </div>
<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span>  <span class="comment">// Protects access to GetThreadLocalsMapLocked() and its return value.</span></div>
<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span>  <span class="keyword">static</span> Mutex mutex_;</div>
<div class="line"><a id="l00637" name="l00637"></a><span class="lineno">  637</span>  <span class="comment">// Protects access to GetThreadMapLocked() and its return value.</span></div>
<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span>  <span class="keyword">static</span> Mutex thread_map_mutex_;</div>
<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span>};</div>
<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span> </div>
<div class="line"><a id="l00641" name="l00641"></a><span class="lineno">  641</span>Mutex ThreadLocalRegistryImpl::mutex_(Mutex::kStaticMutex);  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span>Mutex ThreadLocalRegistryImpl::thread_map_mutex_(</div>
<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span>    Mutex::kStaticMutex);  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span> </div>
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span>ThreadLocalValueHolderBase* ThreadLocalRegistry::GetValueOnCurrentThread(</div>
<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span>    <span class="keyword">const</span> ThreadLocalBase* thread_local_instance) {</div>
<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span>  <span class="keywordflow">return</span> ThreadLocalRegistryImpl::GetValueOnCurrentThread(</div>
<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span>      thread_local_instance);</div>
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span>}</div>
<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span> </div>
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span><span class="keywordtype">void</span> ThreadLocalRegistry::OnThreadLocalDestroyed(</div>
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span>    <span class="keyword">const</span> ThreadLocalBase* thread_local_instance) {</div>
<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span>  ThreadLocalRegistryImpl::OnThreadLocalDestroyed(thread_local_instance);</div>
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span>}</div>
<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span> </div>
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_IS_THREADSAFE &amp;&amp; GTEST_OS_WINDOWS</span></div>
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span> </div>
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span><span class="preprocessor">#if GTEST_USES_POSIX_RE</span></div>
<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span> </div>
<div class="line"><a id="l00660" name="l00660"></a><span class="lineno">  660</span><span class="comment">// Implements RE.  Currently only needed for death tests.</span></div>
<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span> </div>
<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span>RE::~RE() {</div>
<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span>  <span class="keywordflow">if</span> (is_valid_) {</div>
<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span>    <span class="comment">// regfree&#39;ing an invalid regex might crash because the content</span></div>
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno">  665</span>    <span class="comment">// of the regex is undefined. Since the regex&#39;s are essentially</span></div>
<div class="line"><a id="l00666" name="l00666"></a><span class="lineno">  666</span>    <span class="comment">// the same, one cannot be valid (or invalid) without the other</span></div>
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span>    <span class="comment">// being so too.</span></div>
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span>    regfree(&amp;partial_regex_);</div>
<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span>    regfree(&amp;full_regex_);</div>
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span>  }</div>
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno">  671</span>  free(<span class="keyword">const_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(pattern_));</div>
<div class="line"><a id="l00672" name="l00672"></a><span class="lineno">  672</span>}</div>
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno">  673</span> </div>
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno">  674</span><span class="comment">// Returns true if and only if regular expression re matches the entire str.</span></div>
<div class="line"><a id="l00675" name="l00675"></a><span class="lineno">  675</span><span class="keywordtype">bool</span> RE::FullMatch(<span class="keyword">const</span> <span class="keywordtype">char</span>* str, <span class="keyword">const</span> RE&amp; re) {</div>
<div class="line"><a id="l00676" name="l00676"></a><span class="lineno">  676</span>  <span class="keywordflow">if</span> (!re.is_valid_) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00677" name="l00677"></a><span class="lineno">  677</span> </div>
<div class="line"><a id="l00678" name="l00678"></a><span class="lineno">  678</span>  regmatch_t match;</div>
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno">  679</span>  <span class="keywordflow">return</span> regexec(&amp;re.full_regex_, str, 1, &amp;match, 0) == 0;</div>
<div class="line"><a id="l00680" name="l00680"></a><span class="lineno">  680</span>}</div>
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno">  681</span> </div>
<div class="line"><a id="l00682" name="l00682"></a><span class="lineno">  682</span><span class="comment">// Returns true if and only if regular expression re matches a substring of</span></div>
<div class="line"><a id="l00683" name="l00683"></a><span class="lineno">  683</span><span class="comment">// str (including str itself).</span></div>
<div class="line"><a id="l00684" name="l00684"></a><span class="lineno">  684</span><span class="keywordtype">bool</span> RE::PartialMatch(<span class="keyword">const</span> <span class="keywordtype">char</span>* str, <span class="keyword">const</span> RE&amp; re) {</div>
<div class="line"><a id="l00685" name="l00685"></a><span class="lineno">  685</span>  <span class="keywordflow">if</span> (!re.is_valid_) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00686" name="l00686"></a><span class="lineno">  686</span> </div>
<div class="line"><a id="l00687" name="l00687"></a><span class="lineno">  687</span>  regmatch_t match;</div>
<div class="line"><a id="l00688" name="l00688"></a><span class="lineno">  688</span>  <span class="keywordflow">return</span> regexec(&amp;re.partial_regex_, str, 1, &amp;match, 0) == 0;</div>
<div class="line"><a id="l00689" name="l00689"></a><span class="lineno">  689</span>}</div>
<div class="line"><a id="l00690" name="l00690"></a><span class="lineno">  690</span> </div>
<div class="line"><a id="l00691" name="l00691"></a><span class="lineno">  691</span><span class="comment">// Initializes an RE from its string representation.</span></div>
<div class="line"><a id="l00692" name="l00692"></a><span class="lineno">  692</span><span class="keywordtype">void</span> RE::Init(<span class="keyword">const</span> <span class="keywordtype">char</span>* regex) {</div>
<div class="line"><a id="l00693" name="l00693"></a><span class="lineno">  693</span>  pattern_ = posix::StrDup(regex);</div>
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno">  694</span> </div>
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno">  695</span>  <span class="comment">// Reserves enough bytes to hold the regular expression used for a</span></div>
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno">  696</span>  <span class="comment">// full match.</span></div>
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno">  697</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> full_regex_len = strlen(regex) + 10;</div>
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno">  698</span>  <span class="keywordtype">char</span>* <span class="keyword">const</span> full_pattern = <span class="keyword">new</span> <span class="keywordtype">char</span>[full_regex_len];</div>
<div class="line"><a id="l00699" name="l00699"></a><span class="lineno">  699</span> </div>
<div class="line"><a id="l00700" name="l00700"></a><span class="lineno">  700</span>  snprintf(full_pattern, full_regex_len, <span class="stringliteral">&quot;^(%s)$&quot;</span>, regex);</div>
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno">  701</span>  is_valid_ = regcomp(&amp;full_regex_, full_pattern, REG_EXTENDED) == 0;</div>
<div class="line"><a id="l00702" name="l00702"></a><span class="lineno">  702</span>  <span class="comment">// We want to call regcomp(&amp;partial_regex_, ...) even if the</span></div>
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno">  703</span>  <span class="comment">// previous expression returns false.  Otherwise partial_regex_ may</span></div>
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno">  704</span>  <span class="comment">// not be properly initialized can may cause trouble when it&#39;s</span></div>
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno">  705</span>  <span class="comment">// freed.</span></div>
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno">  706</span>  <span class="comment">//</span></div>
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno">  707</span>  <span class="comment">// Some implementation of POSIX regex (e.g. on at least some</span></div>
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno">  708</span>  <span class="comment">// versions of Cygwin) doesn&#39;t accept the empty string as a valid</span></div>
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno">  709</span>  <span class="comment">// regex.  We change it to an equivalent form &quot;()&quot; to be safe.</span></div>
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno">  710</span>  <span class="keywordflow">if</span> (is_valid_) {</div>
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno">  711</span>    <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> partial_regex = (*regex == <span class="charliteral">&#39;\0&#39;</span>) ? <span class="stringliteral">&quot;()&quot;</span> : regex;</div>
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno">  712</span>    is_valid_ = regcomp(&amp;partial_regex_, partial_regex, REG_EXTENDED) == 0;</div>
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno">  713</span>  }</div>
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno">  714</span>  EXPECT_TRUE(is_valid_)</div>
<div class="line"><a id="l00715" name="l00715"></a><span class="lineno">  715</span>      &lt;&lt; <span class="stringliteral">&quot;Regular expression \&quot;&quot;</span> &lt;&lt; regex</div>
<div class="line"><a id="l00716" name="l00716"></a><span class="lineno">  716</span>      &lt;&lt; <span class="stringliteral">&quot;\&quot; is not a valid POSIX Extended regular expression.&quot;</span>;</div>
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno">  717</span> </div>
<div class="line"><a id="l00718" name="l00718"></a><span class="lineno">  718</span>  <span class="keyword">delete</span>[] full_pattern;</div>
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno">  719</span>}</div>
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno">  720</span> </div>
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno">  721</span><span class="preprocessor">#elif GTEST_USES_SIMPLE_RE</span></div>
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno">  722</span> </div>
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno">  723</span><span class="comment">// Returns true if and only if ch appears anywhere in str (excluding the</span></div>
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno">  724</span><span class="comment">// terminating &#39;\0&#39; character).</span></div>
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno">  725</span><span class="keywordtype">bool</span> IsInSet(<span class="keywordtype">char</span> ch, <span class="keyword">const</span> <span class="keywordtype">char</span>* str) {</div>
<div class="line"><a id="l00726" name="l00726"></a><span class="lineno">  726</span>  <span class="keywordflow">return</span> ch != <span class="charliteral">&#39;\0&#39;</span> &amp;&amp; strchr(str, ch) != <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00727" name="l00727"></a><span class="lineno">  727</span>}</div>
<div class="line"><a id="l00728" name="l00728"></a><span class="lineno">  728</span> </div>
<div class="line"><a id="l00729" name="l00729"></a><span class="lineno">  729</span><span class="comment">// Returns true if and only if ch belongs to the given classification.</span></div>
<div class="line"><a id="l00730" name="l00730"></a><span class="lineno">  730</span><span class="comment">// Unlike similar functions in &lt;ctype.h&gt;, these aren&#39;t affected by the</span></div>
<div class="line"><a id="l00731" name="l00731"></a><span class="lineno">  731</span><span class="comment">// current locale.</span></div>
<div class="line"><a id="l00732" name="l00732"></a><span class="lineno">  732</span><span class="keywordtype">bool</span> IsAsciiDigit(<span class="keywordtype">char</span> ch) { <span class="keywordflow">return</span> <span class="charliteral">&#39;0&#39;</span> &lt;= ch &amp;&amp; ch &lt;= <span class="charliteral">&#39;9&#39;</span>; }</div>
<div class="line"><a id="l00733" name="l00733"></a><span class="lineno">  733</span><span class="keywordtype">bool</span> IsAsciiPunct(<span class="keywordtype">char</span> ch) {</div>
<div class="line"><a id="l00734" name="l00734"></a><span class="lineno">  734</span>  <span class="keywordflow">return</span> IsInSet(ch, <span class="stringliteral">&quot;^-!\&quot;#$%&amp;&#39;()*+,./:;&lt;=&gt;?@[\\]_`{|}~&quot;</span>);</div>
<div class="line"><a id="l00735" name="l00735"></a><span class="lineno">  735</span>}</div>
<div class="line"><a id="l00736" name="l00736"></a><span class="lineno">  736</span><span class="keywordtype">bool</span> IsRepeat(<span class="keywordtype">char</span> ch) { <span class="keywordflow">return</span> IsInSet(ch, <span class="stringliteral">&quot;?*+&quot;</span>); }</div>
<div class="line"><a id="l00737" name="l00737"></a><span class="lineno">  737</span><span class="keywordtype">bool</span> IsAsciiWhiteSpace(<span class="keywordtype">char</span> ch) { <span class="keywordflow">return</span> IsInSet(ch, <span class="stringliteral">&quot; \f\n\r\t\v&quot;</span>); }</div>
<div class="line"><a id="l00738" name="l00738"></a><span class="lineno">  738</span><span class="keywordtype">bool</span> IsAsciiWordChar(<span class="keywordtype">char</span> ch) {</div>
<div class="line"><a id="l00739" name="l00739"></a><span class="lineno">  739</span>  <span class="keywordflow">return</span> (<span class="charliteral">&#39;a&#39;</span> &lt;= ch &amp;&amp; ch &lt;= <span class="charliteral">&#39;z&#39;</span>) || (<span class="charliteral">&#39;A&#39;</span> &lt;= ch &amp;&amp; ch &lt;= <span class="charliteral">&#39;Z&#39;</span>) ||</div>
<div class="line"><a id="l00740" name="l00740"></a><span class="lineno">  740</span>         (<span class="charliteral">&#39;0&#39;</span> &lt;= ch &amp;&amp; ch &lt;= <span class="charliteral">&#39;9&#39;</span>) || ch == <span class="charliteral">&#39;_&#39;</span>;</div>
<div class="line"><a id="l00741" name="l00741"></a><span class="lineno">  741</span>}</div>
<div class="line"><a id="l00742" name="l00742"></a><span class="lineno">  742</span> </div>
<div class="line"><a id="l00743" name="l00743"></a><span class="lineno">  743</span><span class="comment">// Returns true if and only if &quot;\\c&quot; is a supported escape sequence.</span></div>
<div class="line"><a id="l00744" name="l00744"></a><span class="lineno">  744</span><span class="keywordtype">bool</span> IsValidEscape(<span class="keywordtype">char</span> c) {</div>
<div class="line"><a id="l00745" name="l00745"></a><span class="lineno">  745</span>  <span class="keywordflow">return</span> (IsAsciiPunct(c) || IsInSet(c, <span class="stringliteral">&quot;dDfnrsStvwW&quot;</span>));</div>
<div class="line"><a id="l00746" name="l00746"></a><span class="lineno">  746</span>}</div>
<div class="line"><a id="l00747" name="l00747"></a><span class="lineno">  747</span> </div>
<div class="line"><a id="l00748" name="l00748"></a><span class="lineno">  748</span><span class="comment">// Returns true if and only if the given atom (specified by escaped and</span></div>
<div class="line"><a id="l00749" name="l00749"></a><span class="lineno">  749</span><span class="comment">// pattern) matches ch.  The result is undefined if the atom is invalid.</span></div>
<div class="line"><a id="l00750" name="l00750"></a><span class="lineno">  750</span><span class="keywordtype">bool</span> AtomMatchesChar(<span class="keywordtype">bool</span> escaped, <span class="keywordtype">char</span> pattern_char, <span class="keywordtype">char</span> ch) {</div>
<div class="line"><a id="l00751" name="l00751"></a><span class="lineno">  751</span>  <span class="keywordflow">if</span> (escaped) {  <span class="comment">// &quot;\\p&quot; where p is pattern_char.</span></div>
<div class="line"><a id="l00752" name="l00752"></a><span class="lineno">  752</span>    <span class="keywordflow">switch</span> (pattern_char) {</div>
<div class="line"><a id="l00753" name="l00753"></a><span class="lineno">  753</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;d&#39;</span>:</div>
<div class="line"><a id="l00754" name="l00754"></a><span class="lineno">  754</span>        <span class="keywordflow">return</span> IsAsciiDigit(ch);</div>
<div class="line"><a id="l00755" name="l00755"></a><span class="lineno">  755</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;D&#39;</span>:</div>
<div class="line"><a id="l00756" name="l00756"></a><span class="lineno">  756</span>        <span class="keywordflow">return</span> !IsAsciiDigit(ch);</div>
<div class="line"><a id="l00757" name="l00757"></a><span class="lineno">  757</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;f&#39;</span>:</div>
<div class="line"><a id="l00758" name="l00758"></a><span class="lineno">  758</span>        <span class="keywordflow">return</span> ch == <span class="charliteral">&#39;\f&#39;</span>;</div>
<div class="line"><a id="l00759" name="l00759"></a><span class="lineno">  759</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;n&#39;</span>:</div>
<div class="line"><a id="l00760" name="l00760"></a><span class="lineno">  760</span>        <span class="keywordflow">return</span> ch == <span class="charliteral">&#39;\n&#39;</span>;</div>
<div class="line"><a id="l00761" name="l00761"></a><span class="lineno">  761</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;r&#39;</span>:</div>
<div class="line"><a id="l00762" name="l00762"></a><span class="lineno">  762</span>        <span class="keywordflow">return</span> ch == <span class="charliteral">&#39;\r&#39;</span>;</div>
<div class="line"><a id="l00763" name="l00763"></a><span class="lineno">  763</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;s&#39;</span>:</div>
<div class="line"><a id="l00764" name="l00764"></a><span class="lineno">  764</span>        <span class="keywordflow">return</span> IsAsciiWhiteSpace(ch);</div>
<div class="line"><a id="l00765" name="l00765"></a><span class="lineno">  765</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;S&#39;</span>:</div>
<div class="line"><a id="l00766" name="l00766"></a><span class="lineno">  766</span>        <span class="keywordflow">return</span> !IsAsciiWhiteSpace(ch);</div>
<div class="line"><a id="l00767" name="l00767"></a><span class="lineno">  767</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;t&#39;</span>:</div>
<div class="line"><a id="l00768" name="l00768"></a><span class="lineno">  768</span>        <span class="keywordflow">return</span> ch == <span class="charliteral">&#39;\t&#39;</span>;</div>
<div class="line"><a id="l00769" name="l00769"></a><span class="lineno">  769</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;v&#39;</span>:</div>
<div class="line"><a id="l00770" name="l00770"></a><span class="lineno">  770</span>        <span class="keywordflow">return</span> ch == <span class="charliteral">&#39;\v&#39;</span>;</div>
<div class="line"><a id="l00771" name="l00771"></a><span class="lineno">  771</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;w&#39;</span>:</div>
<div class="line"><a id="l00772" name="l00772"></a><span class="lineno">  772</span>        <span class="keywordflow">return</span> IsAsciiWordChar(ch);</div>
<div class="line"><a id="l00773" name="l00773"></a><span class="lineno">  773</span>      <span class="keywordflow">case</span> <span class="charliteral">&#39;W&#39;</span>:</div>
<div class="line"><a id="l00774" name="l00774"></a><span class="lineno">  774</span>        <span class="keywordflow">return</span> !IsAsciiWordChar(ch);</div>
<div class="line"><a id="l00775" name="l00775"></a><span class="lineno">  775</span>    }</div>
<div class="line"><a id="l00776" name="l00776"></a><span class="lineno">  776</span>    <span class="keywordflow">return</span> IsAsciiPunct(pattern_char) &amp;&amp; pattern_char == ch;</div>
<div class="line"><a id="l00777" name="l00777"></a><span class="lineno">  777</span>  }</div>
<div class="line"><a id="l00778" name="l00778"></a><span class="lineno">  778</span> </div>
<div class="line"><a id="l00779" name="l00779"></a><span class="lineno">  779</span>  <span class="keywordflow">return</span> (pattern_char == <span class="charliteral">&#39;.&#39;</span> &amp;&amp; ch != <span class="charliteral">&#39;\n&#39;</span>) || pattern_char == ch;</div>
<div class="line"><a id="l00780" name="l00780"></a><span class="lineno">  780</span>}</div>
<div class="line"><a id="l00781" name="l00781"></a><span class="lineno">  781</span> </div>
<div class="line"><a id="l00782" name="l00782"></a><span class="lineno">  782</span><span class="comment">// Helper function used by ValidateRegex() to format error messages.</span></div>
<div class="line"><a id="l00783" name="l00783"></a><span class="lineno">  783</span><span class="keyword">static</span> std::string FormatRegexSyntaxError(<span class="keyword">const</span> <span class="keywordtype">char</span>* regex, <span class="keywordtype">int</span> index) {</div>
<div class="line"><a id="l00784" name="l00784"></a><span class="lineno">  784</span>  <span class="keywordflow">return</span> (<a class="code hl_class" href="class_message.html">Message</a>() &lt;&lt; <span class="stringliteral">&quot;Syntax error at index &quot;</span> &lt;&lt; index</div>
<div class="line"><a id="l00785" name="l00785"></a><span class="lineno">  785</span>                    &lt;&lt; <span class="stringliteral">&quot; in simple regular expression \&quot;&quot;</span> &lt;&lt; regex &lt;&lt; <span class="stringliteral">&quot;\&quot;: &quot;</span>)</div>
<div class="line"><a id="l00786" name="l00786"></a><span class="lineno">  786</span>      .GetString();</div>
<div class="line"><a id="l00787" name="l00787"></a><span class="lineno">  787</span>}</div>
<div class="line"><a id="l00788" name="l00788"></a><span class="lineno">  788</span> </div>
<div class="line"><a id="l00789" name="l00789"></a><span class="lineno">  789</span><span class="comment">// Generates non-fatal failures and returns false if regex is invalid;</span></div>
<div class="line"><a id="l00790" name="l00790"></a><span class="lineno">  790</span><span class="comment">// otherwise returns true.</span></div>
<div class="line"><a id="l00791" name="l00791"></a><span class="lineno">  791</span><span class="keywordtype">bool</span> ValidateRegex(<span class="keyword">const</span> <span class="keywordtype">char</span>* regex) {</div>
<div class="line"><a id="l00792" name="l00792"></a><span class="lineno">  792</span>  <span class="keywordflow">if</span> (regex == <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l00793" name="l00793"></a><span class="lineno">  793</span>    ADD_FAILURE() &lt;&lt; <span class="stringliteral">&quot;NULL is not a valid simple regular expression.&quot;</span>;</div>
<div class="line"><a id="l00794" name="l00794"></a><span class="lineno">  794</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00795" name="l00795"></a><span class="lineno">  795</span>  }</div>
<div class="line"><a id="l00796" name="l00796"></a><span class="lineno">  796</span> </div>
<div class="line"><a id="l00797" name="l00797"></a><span class="lineno">  797</span>  <span class="keywordtype">bool</span> is_valid = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00798" name="l00798"></a><span class="lineno">  798</span> </div>
<div class="line"><a id="l00799" name="l00799"></a><span class="lineno">  799</span>  <span class="comment">// True if and only if ?, *, or + can follow the previous atom.</span></div>
<div class="line"><a id="l00800" name="l00800"></a><span class="lineno">  800</span>  <span class="keywordtype">bool</span> prev_repeatable = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00801" name="l00801"></a><span class="lineno">  801</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; regex[i]; i++) {</div>
<div class="line"><a id="l00802" name="l00802"></a><span class="lineno">  802</span>    <span class="keywordflow">if</span> (regex[i] == <span class="charliteral">&#39;\\&#39;</span>) {  <span class="comment">// An escape sequence</span></div>
<div class="line"><a id="l00803" name="l00803"></a><span class="lineno">  803</span>      i++;</div>
<div class="line"><a id="l00804" name="l00804"></a><span class="lineno">  804</span>      <span class="keywordflow">if</span> (regex[i] == <span class="charliteral">&#39;\0&#39;</span>) {</div>
<div class="line"><a id="l00805" name="l00805"></a><span class="lineno">  805</span>        ADD_FAILURE() &lt;&lt; FormatRegexSyntaxError(regex, i - 1)</div>
<div class="line"><a id="l00806" name="l00806"></a><span class="lineno">  806</span>                      &lt;&lt; <span class="stringliteral">&quot;&#39;\\&#39; cannot appear at the end.&quot;</span>;</div>
<div class="line"><a id="l00807" name="l00807"></a><span class="lineno">  807</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00808" name="l00808"></a><span class="lineno">  808</span>      }</div>
<div class="line"><a id="l00809" name="l00809"></a><span class="lineno">  809</span> </div>
<div class="line"><a id="l00810" name="l00810"></a><span class="lineno">  810</span>      <span class="keywordflow">if</span> (!IsValidEscape(regex[i])) {</div>
<div class="line"><a id="l00811" name="l00811"></a><span class="lineno">  811</span>        ADD_FAILURE() &lt;&lt; FormatRegexSyntaxError(regex, i - 1)</div>
<div class="line"><a id="l00812" name="l00812"></a><span class="lineno">  812</span>                      &lt;&lt; <span class="stringliteral">&quot;invalid escape sequence \&quot;\\&quot;</span> &lt;&lt; regex[i] &lt;&lt; <span class="stringliteral">&quot;\&quot;.&quot;</span>;</div>
<div class="line"><a id="l00813" name="l00813"></a><span class="lineno">  813</span>        is_valid = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00814" name="l00814"></a><span class="lineno">  814</span>      }</div>
<div class="line"><a id="l00815" name="l00815"></a><span class="lineno">  815</span>      prev_repeatable = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00816" name="l00816"></a><span class="lineno">  816</span>    } <span class="keywordflow">else</span> {  <span class="comment">// Not an escape sequence.</span></div>
<div class="line"><a id="l00817" name="l00817"></a><span class="lineno">  817</span>      <span class="keyword">const</span> <span class="keywordtype">char</span> ch = regex[i];</div>
<div class="line"><a id="l00818" name="l00818"></a><span class="lineno">  818</span> </div>
<div class="line"><a id="l00819" name="l00819"></a><span class="lineno">  819</span>      <span class="keywordflow">if</span> (ch == <span class="charliteral">&#39;^&#39;</span> &amp;&amp; i &gt; 0) {</div>
<div class="line"><a id="l00820" name="l00820"></a><span class="lineno">  820</span>        ADD_FAILURE() &lt;&lt; FormatRegexSyntaxError(regex, i)</div>
<div class="line"><a id="l00821" name="l00821"></a><span class="lineno">  821</span>                      &lt;&lt; <span class="stringliteral">&quot;&#39;^&#39; can only appear at the beginning.&quot;</span>;</div>
<div class="line"><a id="l00822" name="l00822"></a><span class="lineno">  822</span>        is_valid = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00823" name="l00823"></a><span class="lineno">  823</span>      } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ch == <span class="charliteral">&#39;$&#39;</span> &amp;&amp; regex[i + 1] != <span class="charliteral">&#39;\0&#39;</span>) {</div>
<div class="line"><a id="l00824" name="l00824"></a><span class="lineno">  824</span>        ADD_FAILURE() &lt;&lt; FormatRegexSyntaxError(regex, i)</div>
<div class="line"><a id="l00825" name="l00825"></a><span class="lineno">  825</span>                      &lt;&lt; <span class="stringliteral">&quot;&#39;$&#39; can only appear at the end.&quot;</span>;</div>
<div class="line"><a id="l00826" name="l00826"></a><span class="lineno">  826</span>        is_valid = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00827" name="l00827"></a><span class="lineno">  827</span>      } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (IsInSet(ch, <span class="stringliteral">&quot;()[]{}|&quot;</span>)) {</div>
<div class="line"><a id="l00828" name="l00828"></a><span class="lineno">  828</span>        ADD_FAILURE() &lt;&lt; FormatRegexSyntaxError(regex, i) &lt;&lt; <span class="stringliteral">&quot;&#39;&quot;</span> &lt;&lt; ch</div>
<div class="line"><a id="l00829" name="l00829"></a><span class="lineno">  829</span>                      &lt;&lt; <span class="stringliteral">&quot;&#39; is unsupported.&quot;</span>;</div>
<div class="line"><a id="l00830" name="l00830"></a><span class="lineno">  830</span>        is_valid = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00831" name="l00831"></a><span class="lineno">  831</span>      } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (IsRepeat(ch) &amp;&amp; !prev_repeatable) {</div>
<div class="line"><a id="l00832" name="l00832"></a><span class="lineno">  832</span>        ADD_FAILURE() &lt;&lt; FormatRegexSyntaxError(regex, i) &lt;&lt; <span class="stringliteral">&quot;&#39;&quot;</span> &lt;&lt; ch</div>
<div class="line"><a id="l00833" name="l00833"></a><span class="lineno">  833</span>                      &lt;&lt; <span class="stringliteral">&quot;&#39; can only follow a repeatable token.&quot;</span>;</div>
<div class="line"><a id="l00834" name="l00834"></a><span class="lineno">  834</span>        is_valid = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00835" name="l00835"></a><span class="lineno">  835</span>      }</div>
<div class="line"><a id="l00836" name="l00836"></a><span class="lineno">  836</span> </div>
<div class="line"><a id="l00837" name="l00837"></a><span class="lineno">  837</span>      prev_repeatable = !IsInSet(ch, <span class="stringliteral">&quot;^$?*+&quot;</span>);</div>
<div class="line"><a id="l00838" name="l00838"></a><span class="lineno">  838</span>    }</div>
<div class="line"><a id="l00839" name="l00839"></a><span class="lineno">  839</span>  }</div>
<div class="line"><a id="l00840" name="l00840"></a><span class="lineno">  840</span> </div>
<div class="line"><a id="l00841" name="l00841"></a><span class="lineno">  841</span>  <span class="keywordflow">return</span> is_valid;</div>
<div class="line"><a id="l00842" name="l00842"></a><span class="lineno">  842</span>}</div>
<div class="line"><a id="l00843" name="l00843"></a><span class="lineno">  843</span> </div>
<div class="line"><a id="l00844" name="l00844"></a><span class="lineno">  844</span><span class="comment">// Matches a repeated regex atom followed by a valid simple regular</span></div>
<div class="line"><a id="l00845" name="l00845"></a><span class="lineno">  845</span><span class="comment">// expression.  The regex atom is defined as c if escaped is false,</span></div>
<div class="line"><a id="l00846" name="l00846"></a><span class="lineno">  846</span><span class="comment">// or \c otherwise.  repeat is the repetition meta character (?, *,</span></div>
<div class="line"><a id="l00847" name="l00847"></a><span class="lineno">  847</span><span class="comment">// or +).  The behavior is undefined if str contains too many</span></div>
<div class="line"><a id="l00848" name="l00848"></a><span class="lineno">  848</span><span class="comment">// characters to be indexable by size_t, in which case the test will</span></div>
<div class="line"><a id="l00849" name="l00849"></a><span class="lineno">  849</span><span class="comment">// probably time out anyway.  We are fine with this limitation as</span></div>
<div class="line"><a id="l00850" name="l00850"></a><span class="lineno">  850</span><span class="comment">// std::string has it too.</span></div>
<div class="line"><a id="l00851" name="l00851"></a><span class="lineno">  851</span><span class="keywordtype">bool</span> MatchRepetitionAndRegexAtHead(<span class="keywordtype">bool</span> escaped, <span class="keywordtype">char</span> c, <span class="keywordtype">char</span> repeat,</div>
<div class="line"><a id="l00852" name="l00852"></a><span class="lineno">  852</span>                                   <span class="keyword">const</span> <span class="keywordtype">char</span>* regex, <span class="keyword">const</span> <span class="keywordtype">char</span>* str) {</div>
<div class="line"><a id="l00853" name="l00853"></a><span class="lineno">  853</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> min_count = (repeat == <span class="charliteral">&#39;+&#39;</span>) ? 1 : 0;</div>
<div class="line"><a id="l00854" name="l00854"></a><span class="lineno">  854</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> max_count = (repeat == <span class="charliteral">&#39;?&#39;</span>) ? 1 : static_cast&lt;size_t&gt;(-1) - 1;</div>
<div class="line"><a id="l00855" name="l00855"></a><span class="lineno">  855</span>  <span class="comment">// We cannot call numeric_limits::max() as it conflicts with the</span></div>
<div class="line"><a id="l00856" name="l00856"></a><span class="lineno">  856</span>  <span class="comment">// max() macro on Windows.</span></div>
<div class="line"><a id="l00857" name="l00857"></a><span class="lineno">  857</span> </div>
<div class="line"><a id="l00858" name="l00858"></a><span class="lineno">  858</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt;= max_count; ++i) {</div>
<div class="line"><a id="l00859" name="l00859"></a><span class="lineno">  859</span>    <span class="comment">// We know that the atom matches each of the first i characters in str.</span></div>
<div class="line"><a id="l00860" name="l00860"></a><span class="lineno">  860</span>    <span class="keywordflow">if</span> (i &gt;= min_count &amp;&amp; MatchRegexAtHead(regex, str + i)) {</div>
<div class="line"><a id="l00861" name="l00861"></a><span class="lineno">  861</span>      <span class="comment">// We have enough matches at the head, and the tail matches too.</span></div>
<div class="line"><a id="l00862" name="l00862"></a><span class="lineno">  862</span>      <span class="comment">// Since we only care about *whether* the pattern matches str</span></div>
<div class="line"><a id="l00863" name="l00863"></a><span class="lineno">  863</span>      <span class="comment">// (as opposed to *how* it matches), there is no need to find a</span></div>
<div class="line"><a id="l00864" name="l00864"></a><span class="lineno">  864</span>      <span class="comment">// greedy match.</span></div>
<div class="line"><a id="l00865" name="l00865"></a><span class="lineno">  865</span>      <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00866" name="l00866"></a><span class="lineno">  866</span>    }</div>
<div class="line"><a id="l00867" name="l00867"></a><span class="lineno">  867</span>    <span class="keywordflow">if</span> (str[i] == <span class="charliteral">&#39;\0&#39;</span> || !AtomMatchesChar(escaped, c, str[i])) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00868" name="l00868"></a><span class="lineno">  868</span>  }</div>
<div class="line"><a id="l00869" name="l00869"></a><span class="lineno">  869</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00870" name="l00870"></a><span class="lineno">  870</span>}</div>
<div class="line"><a id="l00871" name="l00871"></a><span class="lineno">  871</span> </div>
<div class="line"><a id="l00872" name="l00872"></a><span class="lineno">  872</span><span class="comment">// Returns true if and only if regex matches a prefix of str. regex must</span></div>
<div class="line"><a id="l00873" name="l00873"></a><span class="lineno">  873</span><span class="comment">// be a valid simple regular expression and not start with &quot;^&quot;, or the</span></div>
<div class="line"><a id="l00874" name="l00874"></a><span class="lineno">  874</span><span class="comment">// result is undefined.</span></div>
<div class="line"><a id="l00875" name="l00875"></a><span class="lineno">  875</span><span class="keywordtype">bool</span> MatchRegexAtHead(<span class="keyword">const</span> <span class="keywordtype">char</span>* regex, <span class="keyword">const</span> <span class="keywordtype">char</span>* str) {</div>
<div class="line"><a id="l00876" name="l00876"></a><span class="lineno">  876</span>  <span class="keywordflow">if</span> (*regex == <span class="charliteral">&#39;\0&#39;</span>)  <span class="comment">// An empty regex matches a prefix of anything.</span></div>
<div class="line"><a id="l00877" name="l00877"></a><span class="lineno">  877</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00878" name="l00878"></a><span class="lineno">  878</span> </div>
<div class="line"><a id="l00879" name="l00879"></a><span class="lineno">  879</span>  <span class="comment">// &quot;$&quot; only matches the end of a string.  Note that regex being</span></div>
<div class="line"><a id="l00880" name="l00880"></a><span class="lineno">  880</span>  <span class="comment">// valid guarantees that there&#39;s nothing after &quot;$&quot; in it.</span></div>
<div class="line"><a id="l00881" name="l00881"></a><span class="lineno">  881</span>  <span class="keywordflow">if</span> (*regex == <span class="charliteral">&#39;$&#39;</span>) <span class="keywordflow">return</span> *str == <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><a id="l00882" name="l00882"></a><span class="lineno">  882</span> </div>
<div class="line"><a id="l00883" name="l00883"></a><span class="lineno">  883</span>  <span class="comment">// Is the first thing in regex an escape sequence?</span></div>
<div class="line"><a id="l00884" name="l00884"></a><span class="lineno">  884</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> escaped = *regex == <span class="charliteral">&#39;\\&#39;</span>;</div>
<div class="line"><a id="l00885" name="l00885"></a><span class="lineno">  885</span>  <span class="keywordflow">if</span> (escaped) ++regex;</div>
<div class="line"><a id="l00886" name="l00886"></a><span class="lineno">  886</span>  <span class="keywordflow">if</span> (IsRepeat(regex[1])) {</div>
<div class="line"><a id="l00887" name="l00887"></a><span class="lineno">  887</span>    <span class="comment">// MatchRepetitionAndRegexAtHead() calls MatchRegexAtHead(), so</span></div>
<div class="line"><a id="l00888" name="l00888"></a><span class="lineno">  888</span>    <span class="comment">// here&#39;s an indirect recursion.  It terminates as the regex gets</span></div>
<div class="line"><a id="l00889" name="l00889"></a><span class="lineno">  889</span>    <span class="comment">// shorter in each recursion.</span></div>
<div class="line"><a id="l00890" name="l00890"></a><span class="lineno">  890</span>    <span class="keywordflow">return</span> MatchRepetitionAndRegexAtHead(escaped, regex[0], regex[1], regex + 2,</div>
<div class="line"><a id="l00891" name="l00891"></a><span class="lineno">  891</span>                                         str);</div>
<div class="line"><a id="l00892" name="l00892"></a><span class="lineno">  892</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00893" name="l00893"></a><span class="lineno">  893</span>    <span class="comment">// regex isn&#39;t empty, isn&#39;t &quot;$&quot;, and doesn&#39;t start with a</span></div>
<div class="line"><a id="l00894" name="l00894"></a><span class="lineno">  894</span>    <span class="comment">// repetition.  We match the first atom of regex with the first</span></div>
<div class="line"><a id="l00895" name="l00895"></a><span class="lineno">  895</span>    <span class="comment">// character of str and recurse.</span></div>
<div class="line"><a id="l00896" name="l00896"></a><span class="lineno">  896</span>    <span class="keywordflow">return</span> (*str != <span class="charliteral">&#39;\0&#39;</span>) &amp;&amp; AtomMatchesChar(escaped, *regex, *str) &amp;&amp;</div>
<div class="line"><a id="l00897" name="l00897"></a><span class="lineno">  897</span>           MatchRegexAtHead(regex + 1, str + 1);</div>
<div class="line"><a id="l00898" name="l00898"></a><span class="lineno">  898</span>  }</div>
<div class="line"><a id="l00899" name="l00899"></a><span class="lineno">  899</span>}</div>
<div class="line"><a id="l00900" name="l00900"></a><span class="lineno">  900</span> </div>
<div class="line"><a id="l00901" name="l00901"></a><span class="lineno">  901</span><span class="comment">// Returns true if and only if regex matches any substring of str.  regex must</span></div>
<div class="line"><a id="l00902" name="l00902"></a><span class="lineno">  902</span><span class="comment">// be a valid simple regular expression, or the result is undefined.</span></div>
<div class="line"><a id="l00903" name="l00903"></a><span class="lineno">  903</span><span class="comment">//</span></div>
<div class="line"><a id="l00904" name="l00904"></a><span class="lineno">  904</span><span class="comment">// The algorithm is recursive, but the recursion depth doesn&#39;t exceed</span></div>
<div class="line"><a id="l00905" name="l00905"></a><span class="lineno">  905</span><span class="comment">// the regex length, so we won&#39;t need to worry about running out of</span></div>
<div class="line"><a id="l00906" name="l00906"></a><span class="lineno">  906</span><span class="comment">// stack space normally.  In rare cases the time complexity can be</span></div>
<div class="line"><a id="l00907" name="l00907"></a><span class="lineno">  907</span><span class="comment">// exponential with respect to the regex length + the string length,</span></div>
<div class="line"><a id="l00908" name="l00908"></a><span class="lineno">  908</span><span class="comment">// but usually it&#39;s must faster (often close to linear).</span></div>
<div class="line"><a id="l00909" name="l00909"></a><span class="lineno">  909</span><span class="keywordtype">bool</span> MatchRegexAnywhere(<span class="keyword">const</span> <span class="keywordtype">char</span>* regex, <span class="keyword">const</span> <span class="keywordtype">char</span>* str) {</div>
<div class="line"><a id="l00910" name="l00910"></a><span class="lineno">  910</span>  <span class="keywordflow">if</span> (regex == <span class="keyword">nullptr</span> || str == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00911" name="l00911"></a><span class="lineno">  911</span> </div>
<div class="line"><a id="l00912" name="l00912"></a><span class="lineno">  912</span>  <span class="keywordflow">if</span> (*regex == <span class="charliteral">&#39;^&#39;</span>) <span class="keywordflow">return</span> MatchRegexAtHead(regex + 1, str);</div>
<div class="line"><a id="l00913" name="l00913"></a><span class="lineno">  913</span> </div>
<div class="line"><a id="l00914" name="l00914"></a><span class="lineno">  914</span>  <span class="comment">// A successful match can be anywhere in str.</span></div>
<div class="line"><a id="l00915" name="l00915"></a><span class="lineno">  915</span>  <span class="keywordflow">do</span> {</div>
<div class="line"><a id="l00916" name="l00916"></a><span class="lineno">  916</span>    <span class="keywordflow">if</span> (MatchRegexAtHead(regex, str)) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00917" name="l00917"></a><span class="lineno">  917</span>  } <span class="keywordflow">while</span> (*str++ != <span class="charliteral">&#39;\0&#39;</span>);</div>
<div class="line"><a id="l00918" name="l00918"></a><span class="lineno">  918</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00919" name="l00919"></a><span class="lineno">  919</span>}</div>
<div class="line"><a id="l00920" name="l00920"></a><span class="lineno">  920</span> </div>
<div class="line"><a id="l00921" name="l00921"></a><span class="lineno">  921</span><span class="comment">// Implements the RE class.</span></div>
<div class="line"><a id="l00922" name="l00922"></a><span class="lineno">  922</span> </div>
<div class="line"><a id="l00923" name="l00923"></a><span class="lineno">  923</span>RE::~RE() {</div>
<div class="line"><a id="l00924" name="l00924"></a><span class="lineno">  924</span>  free(<span class="keyword">const_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(pattern_));</div>
<div class="line"><a id="l00925" name="l00925"></a><span class="lineno">  925</span>  free(<span class="keyword">const_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(full_pattern_));</div>
<div class="line"><a id="l00926" name="l00926"></a><span class="lineno">  926</span>}</div>
<div class="line"><a id="l00927" name="l00927"></a><span class="lineno">  927</span> </div>
<div class="line"><a id="l00928" name="l00928"></a><span class="lineno">  928</span><span class="comment">// Returns true if and only if regular expression re matches the entire str.</span></div>
<div class="line"><a id="l00929" name="l00929"></a><span class="lineno">  929</span><span class="keywordtype">bool</span> RE::FullMatch(<span class="keyword">const</span> <span class="keywordtype">char</span>* str, <span class="keyword">const</span> RE&amp; re) {</div>
<div class="line"><a id="l00930" name="l00930"></a><span class="lineno">  930</span>  <span class="keywordflow">return</span> re.is_valid_ &amp;&amp; MatchRegexAnywhere(re.full_pattern_, str);</div>
<div class="line"><a id="l00931" name="l00931"></a><span class="lineno">  931</span>}</div>
<div class="line"><a id="l00932" name="l00932"></a><span class="lineno">  932</span> </div>
<div class="line"><a id="l00933" name="l00933"></a><span class="lineno">  933</span><span class="comment">// Returns true if and only if regular expression re matches a substring of</span></div>
<div class="line"><a id="l00934" name="l00934"></a><span class="lineno">  934</span><span class="comment">// str (including str itself).</span></div>
<div class="line"><a id="l00935" name="l00935"></a><span class="lineno">  935</span><span class="keywordtype">bool</span> RE::PartialMatch(<span class="keyword">const</span> <span class="keywordtype">char</span>* str, <span class="keyword">const</span> RE&amp; re) {</div>
<div class="line"><a id="l00936" name="l00936"></a><span class="lineno">  936</span>  <span class="keywordflow">return</span> re.is_valid_ &amp;&amp; MatchRegexAnywhere(re.pattern_, str);</div>
<div class="line"><a id="l00937" name="l00937"></a><span class="lineno">  937</span>}</div>
<div class="line"><a id="l00938" name="l00938"></a><span class="lineno">  938</span> </div>
<div class="line"><a id="l00939" name="l00939"></a><span class="lineno">  939</span><span class="comment">// Initializes an RE from its string representation.</span></div>
<div class="line"><a id="l00940" name="l00940"></a><span class="lineno">  940</span><span class="keywordtype">void</span> RE::Init(<span class="keyword">const</span> <span class="keywordtype">char</span>* regex) {</div>
<div class="line"><a id="l00941" name="l00941"></a><span class="lineno">  941</span>  pattern_ = full_pattern_ = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00942" name="l00942"></a><span class="lineno">  942</span>  <span class="keywordflow">if</span> (regex != <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l00943" name="l00943"></a><span class="lineno">  943</span>    pattern_ = posix::StrDup(regex);</div>
<div class="line"><a id="l00944" name="l00944"></a><span class="lineno">  944</span>  }</div>
<div class="line"><a id="l00945" name="l00945"></a><span class="lineno">  945</span> </div>
<div class="line"><a id="l00946" name="l00946"></a><span class="lineno">  946</span>  is_valid_ = ValidateRegex(regex);</div>
<div class="line"><a id="l00947" name="l00947"></a><span class="lineno">  947</span>  <span class="keywordflow">if</span> (!is_valid_) {</div>
<div class="line"><a id="l00948" name="l00948"></a><span class="lineno">  948</span>    <span class="comment">// No need to calculate the full pattern when the regex is invalid.</span></div>
<div class="line"><a id="l00949" name="l00949"></a><span class="lineno">  949</span>    <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00950" name="l00950"></a><span class="lineno">  950</span>  }</div>
<div class="line"><a id="l00951" name="l00951"></a><span class="lineno">  951</span> </div>
<div class="line"><a id="l00952" name="l00952"></a><span class="lineno">  952</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> len = strlen(regex);</div>
<div class="line"><a id="l00953" name="l00953"></a><span class="lineno">  953</span>  <span class="comment">// Reserves enough bytes to hold the regular expression used for a</span></div>
<div class="line"><a id="l00954" name="l00954"></a><span class="lineno">  954</span>  <span class="comment">// full match: we need space to prepend a &#39;^&#39;, append a &#39;$&#39;, and</span></div>
<div class="line"><a id="l00955" name="l00955"></a><span class="lineno">  955</span>  <span class="comment">// terminate the string with &#39;\0&#39;.</span></div>
<div class="line"><a id="l00956" name="l00956"></a><span class="lineno">  956</span>  <span class="keywordtype">char</span>* buffer = <span class="keyword">static_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(malloc(len + 3));</div>
<div class="line"><a id="l00957" name="l00957"></a><span class="lineno">  957</span>  full_pattern_ = buffer;</div>
<div class="line"><a id="l00958" name="l00958"></a><span class="lineno">  958</span> </div>
<div class="line"><a id="l00959" name="l00959"></a><span class="lineno">  959</span>  <span class="keywordflow">if</span> (*regex != <span class="charliteral">&#39;^&#39;</span>)</div>
<div class="line"><a id="l00960" name="l00960"></a><span class="lineno">  960</span>    *buffer++ = <span class="charliteral">&#39;^&#39;</span>;  <span class="comment">// Makes sure full_pattern_ starts with &#39;^&#39;.</span></div>
<div class="line"><a id="l00961" name="l00961"></a><span class="lineno">  961</span> </div>
<div class="line"><a id="l00962" name="l00962"></a><span class="lineno">  962</span>  <span class="comment">// We don&#39;t use snprintf or strncpy, as they trigger a warning when</span></div>
<div class="line"><a id="l00963" name="l00963"></a><span class="lineno">  963</span>  <span class="comment">// compiled with VC++ 8.0.</span></div>
<div class="line"><a id="l00964" name="l00964"></a><span class="lineno">  964</span>  memcpy(buffer, regex, len);</div>
<div class="line"><a id="l00965" name="l00965"></a><span class="lineno">  965</span>  buffer += len;</div>
<div class="line"><a id="l00966" name="l00966"></a><span class="lineno">  966</span> </div>
<div class="line"><a id="l00967" name="l00967"></a><span class="lineno">  967</span>  <span class="keywordflow">if</span> (len == 0 || regex[len - 1] != <span class="charliteral">&#39;$&#39;</span>)</div>
<div class="line"><a id="l00968" name="l00968"></a><span class="lineno">  968</span>    *buffer++ = <span class="charliteral">&#39;$&#39;</span>;  <span class="comment">// Makes sure full_pattern_ ends with &#39;$&#39;.</span></div>
<div class="line"><a id="l00969" name="l00969"></a><span class="lineno">  969</span> </div>
<div class="line"><a id="l00970" name="l00970"></a><span class="lineno">  970</span>  *buffer = <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><a id="l00971" name="l00971"></a><span class="lineno">  971</span>}</div>
<div class="line"><a id="l00972" name="l00972"></a><span class="lineno">  972</span> </div>
<div class="line"><a id="l00973" name="l00973"></a><span class="lineno">  973</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_USES_POSIX_RE</span></div>
<div class="line"><a id="l00974" name="l00974"></a><span class="lineno">  974</span> </div>
<div class="line"><a id="l00975" name="l00975"></a><span class="lineno">  975</span><span class="keyword">const</span> <span class="keywordtype">char</span> kUnknownFile[] = <span class="stringliteral">&quot;unknown file&quot;</span>;</div>
<div class="line"><a id="l00976" name="l00976"></a><span class="lineno">  976</span> </div>
<div class="line"><a id="l00977" name="l00977"></a><span class="lineno">  977</span><span class="comment">// Formats a source file path and a line number as they would appear</span></div>
<div class="line"><a id="l00978" name="l00978"></a><span class="lineno">  978</span><span class="comment">// in an error message from the compiler used to compile this code.</span></div>
<div class="line"><a id="l00979" name="l00979"></a><span class="lineno">  979</span>GTEST_API_ ::std::string FormatFileLocation(<span class="keyword">const</span> <span class="keywordtype">char</span>* file, <span class="keywordtype">int</span> line) {</div>
<div class="line"><a id="l00980" name="l00980"></a><span class="lineno">  980</span>  <span class="keyword">const</span> std::string file_name(file == <span class="keyword">nullptr</span> ? kUnknownFile : file);</div>
<div class="line"><a id="l00981" name="l00981"></a><span class="lineno">  981</span> </div>
<div class="line"><a id="l00982" name="l00982"></a><span class="lineno">  982</span>  <span class="keywordflow">if</span> (line &lt; 0) {</div>
<div class="line"><a id="l00983" name="l00983"></a><span class="lineno">  983</span>    <span class="keywordflow">return</span> file_name + <span class="stringliteral">&quot;:&quot;</span>;</div>
<div class="line"><a id="l00984" name="l00984"></a><span class="lineno">  984</span>  }</div>
<div class="line"><a id="l00985" name="l00985"></a><span class="lineno">  985</span><span class="preprocessor">#ifdef _MSC_VER</span></div>
<div class="line"><a id="l00986" name="l00986"></a><span class="lineno">  986</span>  <span class="keywordflow">return</span> file_name + <span class="stringliteral">&quot;(&quot;</span> + StreamableToString(line) + <span class="stringliteral">&quot;):&quot;</span>;</div>
<div class="line"><a id="l00987" name="l00987"></a><span class="lineno">  987</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00988" name="l00988"></a><span class="lineno">  988</span>  <span class="keywordflow">return</span> file_name + <span class="stringliteral">&quot;:&quot;</span> + StreamableToString(line) + <span class="stringliteral">&quot;:&quot;</span>;</div>
<div class="line"><a id="l00989" name="l00989"></a><span class="lineno">  989</span><span class="preprocessor">#endif  </span><span class="comment">// _MSC_VER</span></div>
<div class="line"><a id="l00990" name="l00990"></a><span class="lineno">  990</span>}</div>
<div class="line"><a id="l00991" name="l00991"></a><span class="lineno">  991</span> </div>
<div class="line"><a id="l00992" name="l00992"></a><span class="lineno">  992</span><span class="comment">// Formats a file location for compiler-independent XML output.</span></div>
<div class="line"><a id="l00993" name="l00993"></a><span class="lineno">  993</span><span class="comment">// Although this function is not platform dependent, we put it next to</span></div>
<div class="line"><a id="l00994" name="l00994"></a><span class="lineno">  994</span><span class="comment">// FormatFileLocation in order to contrast the two functions.</span></div>
<div class="line"><a id="l00995" name="l00995"></a><span class="lineno">  995</span><span class="comment">// Note that FormatCompilerIndependentFileLocation() does NOT append colon</span></div>
<div class="line"><a id="l00996" name="l00996"></a><span class="lineno">  996</span><span class="comment">// to the file location it produces, unlike FormatFileLocation().</span></div>
<div class="line"><a id="l00997" name="l00997"></a><span class="lineno">  997</span>GTEST_API_ ::std::string FormatCompilerIndependentFileLocation(<span class="keyword">const</span> <span class="keywordtype">char</span>* file,</div>
<div class="line"><a id="l00998" name="l00998"></a><span class="lineno">  998</span>                                                               <span class="keywordtype">int</span> line) {</div>
<div class="line"><a id="l00999" name="l00999"></a><span class="lineno">  999</span>  <span class="keyword">const</span> std::string file_name(file == <span class="keyword">nullptr</span> ? kUnknownFile : file);</div>
<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span> </div>
<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span>  <span class="keywordflow">if</span> (line &lt; 0)</div>
<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span>    <span class="keywordflow">return</span> file_name;</div>
<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span>    <span class="keywordflow">return</span> file_name + <span class="stringliteral">&quot;:&quot;</span> + StreamableToString(line);</div>
<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span>}</div>
<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span> </div>
<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span>GTestLog::GTestLog(GTestLogSeverity severity, <span class="keyword">const</span> <span class="keywordtype">char</span>* file, <span class="keywordtype">int</span> line)</div>
<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span>    : severity_(severity) {</div>
<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> marker = severity == GTEST_INFO      ? <span class="stringliteral">&quot;[  INFO ]&quot;</span></div>
<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span>                             : severity == GTEST_WARNING ? <span class="stringliteral">&quot;[WARNING]&quot;</span></div>
<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span>                             : severity == GTEST_ERROR   ? <span class="stringliteral">&quot;[ ERROR ]&quot;</span></div>
<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span>                                                         : <span class="stringliteral">&quot;[ FATAL ]&quot;</span>;</div>
<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span>  GetStream() &lt;&lt; ::std::endl</div>
<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span>              &lt;&lt; marker &lt;&lt; <span class="stringliteral">&quot; &quot;</span> &lt;&lt; FormatFileLocation(file, line).c_str()</div>
<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span>              &lt;&lt; <span class="stringliteral">&quot;: &quot;</span>;</div>
<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span>}</div>
<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span> </div>
<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span><span class="comment">// Flushes the buffers and, if severity is GTEST_FATAL, aborts the program.</span></div>
<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span>GTestLog::~GTestLog() {</div>
<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span>  GetStream() &lt;&lt; ::std::endl;</div>
<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span>  <span class="keywordflow">if</span> (severity_ == GTEST_FATAL) {</div>
<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span>    fflush(stderr);</div>
<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span>    posix::Abort();</div>
<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span>  }</div>
<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span>}</div>
<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span> </div>
<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span><span class="comment">// Disable Microsoft deprecation warnings for POSIX functions called from</span></div>
<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span><span class="comment">// this class (creat, dup, dup2, and close)</span></div>
<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span>GTEST_DISABLE_MSC_DEPRECATED_PUSH_()</div>
<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span> </div>
<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span><span class="preprocessor">#if GTEST_HAS_STREAM_REDIRECTION</span></div>
<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span> </div>
<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span><span class="comment">// Object that captures an output stream (stdout/stderr).</span></div>
<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span><span class="keyword">class </span>CapturedStream {</div>
<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span>  <span class="comment">// The ctor redirects the stream to a temporary file.</span></div>
<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span>  <span class="keyword">explicit</span> CapturedStream(<span class="keywordtype">int</span> fd) : fd_(fd), uncaptured_fd_(dup(fd)) {</div>
<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span><span class="preprocessor">#if GTEST_OS_WINDOWS</span></div>
<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span>    <span class="keywordtype">char</span> temp_dir_path[MAX_PATH + 1] = {<span class="charliteral">&#39;\0&#39;</span>};   <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span>    <span class="keywordtype">char</span> temp_file_path[MAX_PATH + 1] = {<span class="charliteral">&#39;\0&#39;</span>};  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span> </div>
<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span>    ::GetTempPathA(<span class="keyword">sizeof</span>(temp_dir_path), temp_dir_path);</div>
<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span>    <span class="keyword">const</span> UINT success = ::GetTempFileNameA(temp_dir_path, <span class="stringliteral">&quot;gtest_redir&quot;</span>,</div>
<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span>                                            0,  <span class="comment">// Generate unique file name.</span></div>
<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span>                                            temp_file_path);</div>
<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span>    GTEST_CHECK_(success != 0)</div>
<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span>        &lt;&lt; <span class="stringliteral">&quot;Unable to create a temporary file in &quot;</span> &lt;&lt; temp_dir_path;</div>
<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span>    <span class="keyword">const</span> <span class="keywordtype">int</span> captured_fd = creat(temp_file_path, _S_IREAD | _S_IWRITE);</div>
<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span>    GTEST_CHECK_(captured_fd != -1)</div>
<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span>        &lt;&lt; <span class="stringliteral">&quot;Unable to open temporary file &quot;</span> &lt;&lt; temp_file_path;</div>
<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span>    filename_ = temp_file_path;</div>
<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span>    <span class="comment">// There&#39;s no guarantee that a test has write access to the current</span></div>
<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span>    <span class="comment">// directory, so we create the temporary file in a temporary directory.</span></div>
<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span>    std::string name_template;</div>
<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span> </div>
<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span><span class="preprocessor">#if GTEST_OS_LINUX_ANDROID</span></div>
<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span>    <span class="comment">// Note: Android applications are expected to call the framework&#39;s</span></div>
<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span>    <span class="comment">// Context.getExternalStorageDirectory() method through JNI to get</span></div>
<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span>    <span class="comment">// the location of the world-writable SD Card directory. However,</span></div>
<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span>    <span class="comment">// this requires a Context handle, which cannot be retrieved</span></div>
<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"> 1062</span>    <span class="comment">// globally from native code. Doing so also precludes running the</span></div>
<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span>    <span class="comment">// code as part of a regular standalone executable, which doesn&#39;t</span></div>
<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span>    <span class="comment">// run in a Dalvik process (e.g. when running it through &#39;adb shell&#39;).</span></div>
<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span>    <span class="comment">//</span></div>
<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span>    <span class="comment">// The location /data/local/tmp is directly accessible from native code.</span></div>
<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span>    <span class="comment">// &#39;/sdcard&#39; and other variants cannot be relied on, as they are not</span></div>
<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span>    <span class="comment">// guaranteed to be mounted, or may have a delay in mounting.</span></div>
<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span>    name_template = <span class="stringliteral">&quot;/data/local/tmp/&quot;</span>;</div>
<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span><span class="preprocessor">#elif GTEST_OS_IOS</span></div>
<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span>    <span class="keywordtype">char</span> user_temp_dir[PATH_MAX + 1];</div>
<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span> </div>
<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span>    <span class="comment">// Documented alternative to NSTemporaryDirectory() (for obtaining creating</span></div>
<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span>    <span class="comment">// a temporary directory) at</span></div>
<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span>    <span class="comment">// https://developer.apple.com/library/archive/documentation/Security/Conceptual/SecureCodingGuide/Articles/RaceConditions.html#//apple_ref/doc/uid/TP40002585-SW10</span></div>
<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span>    <span class="comment">//</span></div>
<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span>    <span class="comment">// _CS_DARWIN_USER_TEMP_DIR (as well as _CS_DARWIN_USER_CACHE_DIR) is not</span></div>
<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span>    <span class="comment">// documented in the confstr() man page at</span></div>
<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span>    <span class="comment">// https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/confstr.3.html#//apple_ref/doc/man/3/confstr</span></div>
<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span>    <span class="comment">// but are still available, according to the WebKit patches at</span></div>
<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span>    <span class="comment">// https://trac.webkit.org/changeset/262004/webkit</span></div>
<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span>    <span class="comment">// https://trac.webkit.org/changeset/263705/webkit</span></div>
<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span>    <span class="comment">//</span></div>
<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span>    <span class="comment">// The confstr() implementation falls back to getenv(&quot;TMPDIR&quot;). See</span></div>
<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span>    <span class="comment">// https://opensource.apple.com/source/Libc/Libc-1439.100.3/gen/confstr.c.auto.html</span></div>
<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span>    ::confstr(_CS_DARWIN_USER_TEMP_DIR, user_temp_dir, <span class="keyword">sizeof</span>(user_temp_dir));</div>
<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span> </div>
<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span>    name_template = user_temp_dir;</div>
<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span>    <span class="keywordflow">if</span> (name_template.back() != GTEST_PATH_SEP_[0])</div>
<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span>      name_template.push_back(GTEST_PATH_SEP_[0]);</div>
<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span>    name_template = <span class="stringliteral">&quot;/tmp/&quot;</span>;</div>
<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span>    name_template.append(<span class="stringliteral">&quot;gtest_captured_stream.XXXXXX&quot;</span>);</div>
<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span> </div>
<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span>    <span class="comment">// mkstemp() modifies the string bytes in place, and does not go beyond the</span></div>
<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span>    <span class="comment">// string&#39;s length. This results in well-defined behavior in C++17.</span></div>
<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span>    <span class="comment">//</span></div>
<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span>    <span class="comment">// The const_cast is needed below C++17. The constraints on std::string</span></div>
<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span>    <span class="comment">// implementations in C++11 and above make assumption behind the const_cast</span></div>
<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span>    <span class="comment">// fairly safe.</span></div>
<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span>    <span class="keyword">const</span> <span class="keywordtype">int</span> captured_fd = ::mkstemp(<span class="keyword">const_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(name_template.data()));</div>
<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span>    <span class="keywordflow">if</span> (captured_fd == -1) {</div>
<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span>      GTEST_LOG_(WARNING)</div>
<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span>          &lt;&lt; <span class="stringliteral">&quot;Failed to create tmp file &quot;</span> &lt;&lt; name_template</div>
<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span>          &lt;&lt; <span class="stringliteral">&quot; for test; does the test have access to the /tmp directory?&quot;</span>;</div>
<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span>    }</div>
<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span>    filename_ = std::move(name_template);</div>
<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_OS_WINDOWS</span></div>
<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span>    fflush(<span class="keyword">nullptr</span>);</div>
<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span>    dup2(captured_fd, fd_);</div>
<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span>    close(captured_fd);</div>
<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span>  }</div>
<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span> </div>
<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"> 1115</span>  ~CapturedStream() { remove(filename_.c_str()); }</div>
<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"> 1116</span> </div>
<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</span>  std::string GetCapturedString() {</div>
<div class="line"><a id="l01118" name="l01118"></a><span class="lineno"> 1118</span>    <span class="keywordflow">if</span> (uncaptured_fd_ != -1) {</div>
<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span>      <span class="comment">// Restores the original stream.</span></div>
<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span>      fflush(<span class="keyword">nullptr</span>);</div>
<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span>      dup2(uncaptured_fd_, fd_);</div>
<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span>      close(uncaptured_fd_);</div>
<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span>      uncaptured_fd_ = -1;</div>
<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span>    }</div>
<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"> 1125</span> </div>
<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"> 1126</span>    FILE* <span class="keyword">const</span> file = posix::FOpen(filename_.c_str(), <span class="stringliteral">&quot;r&quot;</span>);</div>
<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span>    <span class="keywordflow">if</span> (file == <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"> 1128</span>      GTEST_LOG_(FATAL) &lt;&lt; <span class="stringliteral">&quot;Failed to open tmp file &quot;</span> &lt;&lt; filename_</div>
<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"> 1129</span>                        &lt;&lt; <span class="stringliteral">&quot; for capturing stream.&quot;</span>;</div>
<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span>    }</div>
<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"> 1131</span>    <span class="keyword">const</span> std::string content = ReadEntireFile(file);</div>
<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"> 1132</span>    posix::FClose(file);</div>
<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span>    <span class="keywordflow">return</span> content;</div>
<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span>  }</div>
<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span> </div>
<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> fd_;  <span class="comment">// A stream to capture.</span></div>
<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span>  <span class="keywordtype">int</span> uncaptured_fd_;</div>
<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span>  <span class="comment">// Name of the temporary file holding the stderr output.</span></div>
<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span>  ::std::string filename_;</div>
<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span> </div>
<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span>  CapturedStream(<span class="keyword">const</span> CapturedStream&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span>  CapturedStream&amp; operator=(<span class="keyword">const</span> CapturedStream&amp;) = <span class="keyword">delete</span>;</div>
<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"> 1144</span>};</div>
<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"> 1145</span> </div>
<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span>GTEST_DISABLE_MSC_DEPRECATED_POP_()</div>
<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span> </div>
<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span>static CapturedStream* g_captured_stderr = <span class="keywordtype">nullptr</span>;</div>
<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"> 1149</span>static CapturedStream* g_captured_stdout = <span class="keywordtype">nullptr</span>;</div>
<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"> 1150</span> </div>
<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span><span class="comment">// Starts capturing an output stream (stdout/stderr).</span></div>
<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span>static <span class="keywordtype">void</span> CaptureStream(<span class="keywordtype">int</span> fd, const <span class="keywordtype">char</span>* stream_name,</div>
<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span>                          CapturedStream** stream) {</div>
<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span>  <span class="keywordflow">if</span> (*stream != <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span>    GTEST_LOG_(FATAL) &lt;&lt; <span class="stringliteral">&quot;Only one &quot;</span> &lt;&lt; stream_name</div>
<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span>                      &lt;&lt; <span class="stringliteral">&quot; capturer can exist at a time.&quot;</span>;</div>
<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span>  }</div>
<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"> 1158</span>  *stream = <span class="keyword">new</span> CapturedStream(fd);</div>
<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span>}</div>
<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span> </div>
<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span><span class="comment">// Stops capturing the output stream and returns the captured string.</span></div>
<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span><span class="keyword">static</span> std::string GetCapturedStream(CapturedStream** captured_stream) {</div>
<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"> 1163</span>  <span class="keyword">const</span> std::string content = (*captured_stream)-&gt;GetCapturedString();</div>
<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span> </div>
<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span>  <span class="keyword">delete</span> *captured_stream;</div>
<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span>  *captured_stream = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span> </div>
<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"> 1168</span>  <span class="keywordflow">return</span> content;</div>
<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span>}</div>
<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span> </div>
<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span><span class="preprocessor">#if defined(_MSC_VER) || defined(__BORLANDC__)</span></div>
<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span><span class="comment">// MSVC and C++Builder do not provide a definition of STDERR_FILENO.</span></div>
<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"> 1173</span><span class="keyword">const</span> <span class="keywordtype">int</span> kStdOutFileno = 1;</div>
<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span><span class="keyword">const</span> <span class="keywordtype">int</span> kStdErrFileno = 2;</div>
<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span><span class="keyword">const</span> <span class="keywordtype">int</span> kStdOutFileno = STDOUT_FILENO;</div>
<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span><span class="keyword">const</span> <span class="keywordtype">int</span> kStdErrFileno = STDERR_FILENO;</div>
<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"> 1178</span><span class="preprocessor">#endif  </span><span class="comment">// defined(_MSC_VER) || defined(__BORLANDC__)</span></div>
<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"> 1179</span> </div>
<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"> 1180</span><span class="comment">// Starts capturing stdout.</span></div>
<div class="line"><a id="l01181" name="l01181"></a><span class="lineno"> 1181</span><span class="keywordtype">void</span> CaptureStdout() {</div>
<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"> 1182</span>  CaptureStream(kStdOutFileno, <span class="stringliteral">&quot;stdout&quot;</span>, &amp;g_captured_stdout);</div>
<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span>}</div>
<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"> 1184</span> </div>
<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"> 1185</span><span class="comment">// Starts capturing stderr.</span></div>
<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span><span class="keywordtype">void</span> CaptureStderr() {</div>
<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span>  CaptureStream(kStdErrFileno, <span class="stringliteral">&quot;stderr&quot;</span>, &amp;g_captured_stderr);</div>
<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span>}</div>
<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span> </div>
<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span><span class="comment">// Stops capturing stdout and returns the captured string.</span></div>
<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span>std::string GetCapturedStdout() {</div>
<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"> 1192</span>  <span class="keywordflow">return</span> GetCapturedStream(&amp;g_captured_stdout);</div>
<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"> 1193</span>}</div>
<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"> 1194</span> </div>
<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"> 1195</span><span class="comment">// Stops capturing stderr and returns the captured string.</span></div>
<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span>std::string GetCapturedStderr() {</div>
<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span>  <span class="keywordflow">return</span> GetCapturedStream(&amp;g_captured_stderr);</div>
<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span>}</div>
<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span> </div>
<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"> 1200</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_HAS_STREAM_REDIRECTION</span></div>
<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"> 1201</span> </div>
<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"> 1202</span><span class="keywordtype">size_t</span> GetFileSize(FILE* file) {</div>
<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"> 1203</span>  fseek(file, 0, SEEK_END);</div>
<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"> 1204</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(ftell(file));</div>
<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span>}</div>
<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span> </div>
<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span>std::string ReadEntireFile(FILE* file) {</div>
<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> file_size = GetFileSize(file);</div>
<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span>  <span class="keywordtype">char</span>* <span class="keyword">const</span> buffer = <span class="keyword">new</span> <span class="keywordtype">char</span>[file_size];</div>
<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span> </div>
<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"> 1211</span>  <span class="keywordtype">size_t</span> bytes_last_read = 0;  <span class="comment">// # of bytes read in the last fread()</span></div>
<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"> 1212</span>  <span class="keywordtype">size_t</span> bytes_read = 0;       <span class="comment">// # of bytes read so far</span></div>
<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span> </div>
<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"> 1214</span>  fseek(file, 0, SEEK_SET);</div>
<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"> 1215</span> </div>
<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"> 1216</span>  <span class="comment">// Keeps reading the file until we cannot read further or the</span></div>
<div class="line"><a id="l01217" name="l01217"></a><span class="lineno"> 1217</span>  <span class="comment">// pre-determined file size is reached.</span></div>
<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"> 1218</span>  <span class="keywordflow">do</span> {</div>
<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span>    bytes_last_read =</div>
<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span>        fread(buffer + bytes_read, 1, file_size - bytes_read, file);</div>
<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"> 1221</span>    bytes_read += bytes_last_read;</div>
<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"> 1222</span>  } <span class="keywordflow">while</span> (bytes_last_read &gt; 0 &amp;&amp; bytes_read &lt; file_size);</div>
<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span> </div>
<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span>  <span class="keyword">const</span> std::string content(buffer, bytes_read);</div>
<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"> 1225</span>  <span class="keyword">delete</span>[] buffer;</div>
<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"> 1226</span> </div>
<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span>  <span class="keywordflow">return</span> content;</div>
<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span>}</div>
<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"> 1229</span> </div>
<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span><span class="preprocessor">#if GTEST_HAS_DEATH_TEST</span></div>
<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span><span class="keyword">static</span> <span class="keyword">const</span> std::vector&lt;std::string&gt;* g_injected_test_argvs =</div>
<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span>    <span class="keyword">nullptr</span>;  <span class="comment">// Owned.</span></div>
<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span> </div>
<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"> 1234</span>std::vector&lt;std::string&gt; GetInjectableArgvs() {</div>
<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span>  <span class="keywordflow">if</span> (g_injected_test_argvs != <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span>    <span class="keywordflow">return</span> *g_injected_test_argvs;</div>
<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span>  }</div>
<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span>  <span class="keywordflow">return</span> GetArgvs();</div>
<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span>}</div>
<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span> </div>
<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"> 1241</span><span class="keywordtype">void</span> SetInjectableArgvs(<span class="keyword">const</span> std::vector&lt;std::string&gt;* new_argvs) {</div>
<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"> 1242</span>  <span class="keywordflow">if</span> (g_injected_test_argvs != new_argvs) <span class="keyword">delete</span> g_injected_test_argvs;</div>
<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span>  g_injected_test_argvs = new_argvs;</div>
<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span>}</div>
<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span> </div>
<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span><span class="keywordtype">void</span> SetInjectableArgvs(<span class="keyword">const</span> std::vector&lt;std::string&gt;&amp; new_argvs) {</div>
<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span>  SetInjectableArgvs(</div>
<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span>      <span class="keyword">new</span> std::vector&lt;std::string&gt;(new_argvs.begin(), new_argvs.end()));</div>
<div class="line"><a id="l01249" name="l01249"></a><span class="lineno"> 1249</span>}</div>
<div class="line"><a id="l01250" name="l01250"></a><span class="lineno"> 1250</span> </div>
<div class="line"><a id="l01251" name="l01251"></a><span class="lineno"> 1251</span><span class="keywordtype">void</span> ClearInjectableArgvs() {</div>
<div class="line"><a id="l01252" name="l01252"></a><span class="lineno"> 1252</span>  <span class="keyword">delete</span> g_injected_test_argvs;</div>
<div class="line"><a id="l01253" name="l01253"></a><span class="lineno"> 1253</span>  g_injected_test_argvs = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l01254" name="l01254"></a><span class="lineno"> 1254</span>}</div>
<div class="line"><a id="l01255" name="l01255"></a><span class="lineno"> 1255</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_HAS_DEATH_TEST</span></div>
<div class="line"><a id="l01256" name="l01256"></a><span class="lineno"> 1256</span> </div>
<div class="line"><a id="l01257" name="l01257"></a><span class="lineno"> 1257</span><span class="preprocessor">#if GTEST_OS_WINDOWS_MOBILE</span></div>
<div class="line"><a id="l01258" name="l01258"></a><span class="lineno"> 1258</span><span class="keyword">namespace </span>posix {</div>
<div class="line"><a id="l01259" name="l01259"></a><span class="lineno"> 1259</span><span class="keywordtype">void</span> Abort() {</div>
<div class="line"><a id="l01260" name="l01260"></a><span class="lineno"> 1260</span>  DebugBreak();</div>
<div class="line"><a id="l01261" name="l01261"></a><span class="lineno"> 1261</span>  TerminateProcess(GetCurrentProcess(), 1);</div>
<div class="line"><a id="l01262" name="l01262"></a><span class="lineno"> 1262</span>}</div>
<div class="line"><a id="l01263" name="l01263"></a><span class="lineno"> 1263</span>}  <span class="comment">// namespace posix</span></div>
<div class="line"><a id="l01264" name="l01264"></a><span class="lineno"> 1264</span><span class="preprocessor">#endif  </span><span class="comment">// GTEST_OS_WINDOWS_MOBILE</span></div>
<div class="line"><a id="l01265" name="l01265"></a><span class="lineno"> 1265</span> </div>
<div class="line"><a id="l01266" name="l01266"></a><span class="lineno"> 1266</span><span class="comment">// Returns the name of the environment variable corresponding to the</span></div>
<div class="line"><a id="l01267" name="l01267"></a><span class="lineno"> 1267</span><span class="comment">// given flag.  For example, FlagToEnvVar(&quot;foo&quot;) will return</span></div>
<div class="line"><a id="l01268" name="l01268"></a><span class="lineno"> 1268</span><span class="comment">// &quot;GTEST_FOO&quot; in the open-source version.</span></div>
<div class="line"><a id="l01269" name="l01269"></a><span class="lineno"> 1269</span><span class="keyword">static</span> std::string FlagToEnvVar(<span class="keyword">const</span> <span class="keywordtype">char</span>* flag) {</div>
<div class="line"><a id="l01270" name="l01270"></a><span class="lineno"> 1270</span>  <span class="keyword">const</span> std::string full_flag =</div>
<div class="line"><a id="l01271" name="l01271"></a><span class="lineno"> 1271</span>      (<a class="code hl_class" href="class_message.html">Message</a>() &lt;&lt; GTEST_FLAG_PREFIX_ &lt;&lt; flag).GetString();</div>
<div class="line"><a id="l01272" name="l01272"></a><span class="lineno"> 1272</span> </div>
<div class="line"><a id="l01273" name="l01273"></a><span class="lineno"> 1273</span>  <a class="code hl_class" href="class_message.html">Message</a> env_var;</div>
<div class="line"><a id="l01274" name="l01274"></a><span class="lineno"> 1274</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i != full_flag.length(); i++) {</div>
<div class="line"><a id="l01275" name="l01275"></a><span class="lineno"> 1275</span>    env_var &lt;&lt; ToUpper(full_flag.c_str()[i]);</div>
<div class="line"><a id="l01276" name="l01276"></a><span class="lineno"> 1276</span>  }</div>
<div class="line"><a id="l01277" name="l01277"></a><span class="lineno"> 1277</span> </div>
<div class="line"><a id="l01278" name="l01278"></a><span class="lineno"> 1278</span>  <span class="keywordflow">return</span> env_var.GetString();</div>
<div class="line"><a id="l01279" name="l01279"></a><span class="lineno"> 1279</span>}</div>
<div class="line"><a id="l01280" name="l01280"></a><span class="lineno"> 1280</span> </div>
<div class="line"><a id="l01281" name="l01281"></a><span class="lineno"> 1281</span><span class="comment">// Parses &#39;str&#39; for a 32-bit signed integer.  If successful, writes</span></div>
<div class="line"><a id="l01282" name="l01282"></a><span class="lineno"> 1282</span><span class="comment">// the result to *value and returns true; otherwise leaves *value</span></div>
<div class="line"><a id="l01283" name="l01283"></a><span class="lineno"> 1283</span><span class="comment">// unchanged and returns false.</span></div>
<div class="line"><a id="l01284" name="l01284"></a><span class="lineno"> 1284</span><span class="keywordtype">bool</span> ParseInt32(<span class="keyword">const</span> <a class="code hl_class" href="class_message.html">Message</a>&amp; src_text, <span class="keyword">const</span> <span class="keywordtype">char</span>* str, int32_t* value) {</div>
<div class="line"><a id="l01285" name="l01285"></a><span class="lineno"> 1285</span>  <span class="comment">// Parses the environment variable as a decimal integer.</span></div>
<div class="line"><a id="l01286" name="l01286"></a><span class="lineno"> 1286</span>  <span class="keywordtype">char</span>* end = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l01287" name="l01287"></a><span class="lineno"> 1287</span>  <span class="keyword">const</span> <span class="keywordtype">long</span> long_value = strtol(str, &amp;end, 10);  <span class="comment">// NOLINT</span></div>
<div class="line"><a id="l01288" name="l01288"></a><span class="lineno"> 1288</span> </div>
<div class="line"><a id="l01289" name="l01289"></a><span class="lineno"> 1289</span>  <span class="comment">// Has strtol() consumed all characters in the string?</span></div>
<div class="line"><a id="l01290" name="l01290"></a><span class="lineno"> 1290</span>  <span class="keywordflow">if</span> (*end != <span class="charliteral">&#39;\0&#39;</span>) {</div>
<div class="line"><a id="l01291" name="l01291"></a><span class="lineno"> 1291</span>    <span class="comment">// No - an invalid character was encountered.</span></div>
<div class="line"><a id="l01292" name="l01292"></a><span class="lineno"> 1292</span>    <a class="code hl_class" href="class_message.html">Message</a> msg;</div>
<div class="line"><a id="l01293" name="l01293"></a><span class="lineno"> 1293</span>    msg &lt;&lt; <span class="stringliteral">&quot;WARNING: &quot;</span> &lt;&lt; src_text</div>
<div class="line"><a id="l01294" name="l01294"></a><span class="lineno"> 1294</span>        &lt;&lt; <span class="stringliteral">&quot; is expected to be a 32-bit integer, but actually&quot;</span></div>
<div class="line"><a id="l01295" name="l01295"></a><span class="lineno"> 1295</span>        &lt;&lt; <span class="stringliteral">&quot; has value \&quot;&quot;</span> &lt;&lt; str &lt;&lt; <span class="stringliteral">&quot;\&quot;.\n&quot;</span>;</div>
<div class="line"><a id="l01296" name="l01296"></a><span class="lineno"> 1296</span>    printf(<span class="stringliteral">&quot;%s&quot;</span>, msg.GetString().c_str());</div>
<div class="line"><a id="l01297" name="l01297"></a><span class="lineno"> 1297</span>    fflush(stdout);</div>
<div class="line"><a id="l01298" name="l01298"></a><span class="lineno"> 1298</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01299" name="l01299"></a><span class="lineno"> 1299</span>  }</div>
<div class="line"><a id="l01300" name="l01300"></a><span class="lineno"> 1300</span> </div>
<div class="line"><a id="l01301" name="l01301"></a><span class="lineno"> 1301</span>  <span class="comment">// Is the parsed value in the range of an int32_t?</span></div>
<div class="line"><a id="l01302" name="l01302"></a><span class="lineno"> 1302</span>  <span class="keyword">const</span> <span class="keyword">auto</span> result = <span class="keyword">static_cast&lt;</span>int32_t<span class="keyword">&gt;</span>(long_value);</div>
<div class="line"><a id="l01303" name="l01303"></a><span class="lineno"> 1303</span>  <span class="keywordflow">if</span> (long_value == LONG_MAX || long_value == LONG_MIN ||</div>
<div class="line"><a id="l01304" name="l01304"></a><span class="lineno"> 1304</span>      <span class="comment">// The parsed value overflows as a long.  (strtol() returns</span></div>
<div class="line"><a id="l01305" name="l01305"></a><span class="lineno"> 1305</span>      <span class="comment">// LONG_MAX or LONG_MIN when the input overflows.)</span></div>
<div class="line"><a id="l01306" name="l01306"></a><span class="lineno"> 1306</span>      result != long_value</div>
<div class="line"><a id="l01307" name="l01307"></a><span class="lineno"> 1307</span>      <span class="comment">// The parsed value overflows as an int32_t.</span></div>
<div class="line"><a id="l01308" name="l01308"></a><span class="lineno"> 1308</span>  ) {</div>
<div class="line"><a id="l01309" name="l01309"></a><span class="lineno"> 1309</span>    <a class="code hl_class" href="class_message.html">Message</a> msg;</div>
<div class="line"><a id="l01310" name="l01310"></a><span class="lineno"> 1310</span>    msg &lt;&lt; <span class="stringliteral">&quot;WARNING: &quot;</span> &lt;&lt; src_text</div>
<div class="line"><a id="l01311" name="l01311"></a><span class="lineno"> 1311</span>        &lt;&lt; <span class="stringliteral">&quot; is expected to be a 32-bit integer, but actually&quot;</span></div>
<div class="line"><a id="l01312" name="l01312"></a><span class="lineno"> 1312</span>        &lt;&lt; <span class="stringliteral">&quot; has value &quot;</span> &lt;&lt; str &lt;&lt; <span class="stringliteral">&quot;, which overflows.\n&quot;</span>;</div>
<div class="line"><a id="l01313" name="l01313"></a><span class="lineno"> 1313</span>    printf(<span class="stringliteral">&quot;%s&quot;</span>, msg.GetString().c_str());</div>
<div class="line"><a id="l01314" name="l01314"></a><span class="lineno"> 1314</span>    fflush(stdout);</div>
<div class="line"><a id="l01315" name="l01315"></a><span class="lineno"> 1315</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l01316" name="l01316"></a><span class="lineno"> 1316</span>  }</div>
<div class="line"><a id="l01317" name="l01317"></a><span class="lineno"> 1317</span> </div>
<div class="line"><a id="l01318" name="l01318"></a><span class="lineno"> 1318</span>  *value = result;</div>
<div class="line"><a id="l01319" name="l01319"></a><span class="lineno"> 1319</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l01320" name="l01320"></a><span class="lineno"> 1320</span>}</div>
<div class="line"><a id="l01321" name="l01321"></a><span class="lineno"> 1321</span> </div>
<div class="line"><a id="l01322" name="l01322"></a><span class="lineno"> 1322</span><span class="comment">// Reads and returns the Boolean environment variable corresponding to</span></div>
<div class="line"><a id="l01323" name="l01323"></a><span class="lineno"> 1323</span><span class="comment">// the given flag; if it&#39;s not set, returns default_value.</span></div>
<div class="line"><a id="l01324" name="l01324"></a><span class="lineno"> 1324</span><span class="comment">//</span></div>
<div class="line"><a id="l01325" name="l01325"></a><span class="lineno"> 1325</span><span class="comment">// The value is considered true if and only if it&#39;s not &quot;0&quot;.</span></div>
<div class="line"><a id="l01326" name="l01326"></a><span class="lineno"> 1326</span><span class="keywordtype">bool</span> BoolFromGTestEnv(<span class="keyword">const</span> <span class="keywordtype">char</span>* flag, <span class="keywordtype">bool</span> default_value) {</div>
<div class="line"><a id="l01327" name="l01327"></a><span class="lineno"> 1327</span><span class="preprocessor">#if defined(GTEST_GET_BOOL_FROM_ENV_)</span></div>
<div class="line"><a id="l01328" name="l01328"></a><span class="lineno"> 1328</span>  <span class="keywordflow">return</span> GTEST_GET_BOOL_FROM_ENV_(flag, default_value);</div>
<div class="line"><a id="l01329" name="l01329"></a><span class="lineno"> 1329</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l01330" name="l01330"></a><span class="lineno"> 1330</span>  <span class="keyword">const</span> std::string env_var = FlagToEnvVar(flag);</div>
<div class="line"><a id="l01331" name="l01331"></a><span class="lineno"> 1331</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> string_value = posix::GetEnv(env_var.c_str());</div>
<div class="line"><a id="l01332" name="l01332"></a><span class="lineno"> 1332</span>  <span class="keywordflow">return</span> string_value == <span class="keyword">nullptr</span> ? default_value</div>
<div class="line"><a id="l01333" name="l01333"></a><span class="lineno"> 1333</span>                                 : strcmp(string_value, <span class="stringliteral">&quot;0&quot;</span>) != 0;</div>
<div class="line"><a id="l01334" name="l01334"></a><span class="lineno"> 1334</span><span class="preprocessor">#endif  </span><span class="comment">// defined(GTEST_GET_BOOL_FROM_ENV_)</span></div>
<div class="line"><a id="l01335" name="l01335"></a><span class="lineno"> 1335</span>}</div>
<div class="line"><a id="l01336" name="l01336"></a><span class="lineno"> 1336</span> </div>
<div class="line"><a id="l01337" name="l01337"></a><span class="lineno"> 1337</span><span class="comment">// Reads and returns a 32-bit integer stored in the environment</span></div>
<div class="line"><a id="l01338" name="l01338"></a><span class="lineno"> 1338</span><span class="comment">// variable corresponding to the given flag; if it isn&#39;t set or</span></div>
<div class="line"><a id="l01339" name="l01339"></a><span class="lineno"> 1339</span><span class="comment">// doesn&#39;t represent a valid 32-bit integer, returns default_value.</span></div>
<div class="line"><a id="l01340" name="l01340"></a><span class="lineno"> 1340</span>int32_t Int32FromGTestEnv(<span class="keyword">const</span> <span class="keywordtype">char</span>* flag, int32_t default_value) {</div>
<div class="line"><a id="l01341" name="l01341"></a><span class="lineno"> 1341</span><span class="preprocessor">#if defined(GTEST_GET_INT32_FROM_ENV_)</span></div>
<div class="line"><a id="l01342" name="l01342"></a><span class="lineno"> 1342</span>  <span class="keywordflow">return</span> GTEST_GET_INT32_FROM_ENV_(flag, default_value);</div>
<div class="line"><a id="l01343" name="l01343"></a><span class="lineno"> 1343</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l01344" name="l01344"></a><span class="lineno"> 1344</span>  <span class="keyword">const</span> std::string env_var = FlagToEnvVar(flag);</div>
<div class="line"><a id="l01345" name="l01345"></a><span class="lineno"> 1345</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> string_value = posix::GetEnv(env_var.c_str());</div>
<div class="line"><a id="l01346" name="l01346"></a><span class="lineno"> 1346</span>  <span class="keywordflow">if</span> (string_value == <span class="keyword">nullptr</span>) {</div>
<div class="line"><a id="l01347" name="l01347"></a><span class="lineno"> 1347</span>    <span class="comment">// The environment variable is not set.</span></div>
<div class="line"><a id="l01348" name="l01348"></a><span class="lineno"> 1348</span>    <span class="keywordflow">return</span> default_value;</div>
<div class="line"><a id="l01349" name="l01349"></a><span class="lineno"> 1349</span>  }</div>
<div class="line"><a id="l01350" name="l01350"></a><span class="lineno"> 1350</span> </div>
<div class="line"><a id="l01351" name="l01351"></a><span class="lineno"> 1351</span>  int32_t result = default_value;</div>
<div class="line"><a id="l01352" name="l01352"></a><span class="lineno"> 1352</span>  <span class="keywordflow">if</span> (!ParseInt32(<a class="code hl_class" href="class_message.html">Message</a>() &lt;&lt; <span class="stringliteral">&quot;Environment variable &quot;</span> &lt;&lt; env_var, string_value,</div>
<div class="line"><a id="l01353" name="l01353"></a><span class="lineno"> 1353</span>                  &amp;result)) {</div>
<div class="line"><a id="l01354" name="l01354"></a><span class="lineno"> 1354</span>    printf(<span class="stringliteral">&quot;The default value %s is used.\n&quot;</span>,</div>
<div class="line"><a id="l01355" name="l01355"></a><span class="lineno"> 1355</span>           (<a class="code hl_class" href="class_message.html">Message</a>() &lt;&lt; default_value).GetString().c_str());</div>
<div class="line"><a id="l01356" name="l01356"></a><span class="lineno"> 1356</span>    fflush(stdout);</div>
<div class="line"><a id="l01357" name="l01357"></a><span class="lineno"> 1357</span>    <span class="keywordflow">return</span> default_value;</div>
<div class="line"><a id="l01358" name="l01358"></a><span class="lineno"> 1358</span>  }</div>
<div class="line"><a id="l01359" name="l01359"></a><span class="lineno"> 1359</span> </div>
<div class="line"><a id="l01360" name="l01360"></a><span class="lineno"> 1360</span>  <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l01361" name="l01361"></a><span class="lineno"> 1361</span><span class="preprocessor">#endif  </span><span class="comment">// defined(GTEST_GET_INT32_FROM_ENV_)</span></div>
<div class="line"><a id="l01362" name="l01362"></a><span class="lineno"> 1362</span>}</div>
<div class="line"><a id="l01363" name="l01363"></a><span class="lineno"> 1363</span> </div>
<div class="line"><a id="l01364" name="l01364"></a><span class="lineno"> 1364</span><span class="comment">// As a special case for the &#39;output&#39; flag, if GTEST_OUTPUT is not</span></div>
<div class="line"><a id="l01365" name="l01365"></a><span class="lineno"> 1365</span><span class="comment">// set, we look for XML_OUTPUT_FILE, which is set by the Bazel build</span></div>
<div class="line"><a id="l01366" name="l01366"></a><span class="lineno"> 1366</span><span class="comment">// system.  The value of XML_OUTPUT_FILE is a filename without the</span></div>
<div class="line"><a id="l01367" name="l01367"></a><span class="lineno"> 1367</span><span class="comment">// &quot;xml:&quot; prefix of GTEST_OUTPUT.</span></div>
<div class="line"><a id="l01368" name="l01368"></a><span class="lineno"> 1368</span><span class="comment">// Note that this is meant to be called at the call site so it does</span></div>
<div class="line"><a id="l01369" name="l01369"></a><span class="lineno"> 1369</span><span class="comment">// not check that the flag is &#39;output&#39;</span></div>
<div class="line"><a id="l01370" name="l01370"></a><span class="lineno"> 1370</span><span class="comment">// In essence this checks an env variable called XML_OUTPUT_FILE</span></div>
<div class="line"><a id="l01371" name="l01371"></a><span class="lineno"> 1371</span><span class="comment">// and if it is set we prepend &quot;xml:&quot; to its value, if it not set we return &quot;&quot;</span></div>
<div class="line"><a id="l01372" name="l01372"></a><span class="lineno"> 1372</span>std::string OutputFlagAlsoCheckEnvVar() {</div>
<div class="line"><a id="l01373" name="l01373"></a><span class="lineno"> 1373</span>  std::string default_value_for_output_flag = <span class="stringliteral">&quot;&quot;</span>;</div>
<div class="line"><a id="l01374" name="l01374"></a><span class="lineno"> 1374</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* xml_output_file_env = posix::GetEnv(<span class="stringliteral">&quot;XML_OUTPUT_FILE&quot;</span>);</div>
<div class="line"><a id="l01375" name="l01375"></a><span class="lineno"> 1375</span>  <span class="keywordflow">if</span> (<span class="keyword">nullptr</span> != xml_output_file_env) {</div>
<div class="line"><a id="l01376" name="l01376"></a><span class="lineno"> 1376</span>    default_value_for_output_flag = std::string(<span class="stringliteral">&quot;xml:&quot;</span>) + xml_output_file_env;</div>
<div class="line"><a id="l01377" name="l01377"></a><span class="lineno"> 1377</span>  }</div>
<div class="line"><a id="l01378" name="l01378"></a><span class="lineno"> 1378</span>  <span class="keywordflow">return</span> default_value_for_output_flag;</div>
<div class="line"><a id="l01379" name="l01379"></a><span class="lineno"> 1379</span>}</div>
<div class="line"><a id="l01380" name="l01380"></a><span class="lineno"> 1380</span> </div>
<div class="line"><a id="l01381" name="l01381"></a><span class="lineno"> 1381</span><span class="comment">// Reads and returns the string environment variable corresponding to</span></div>
<div class="line"><a id="l01382" name="l01382"></a><span class="lineno"> 1382</span><span class="comment">// the given flag; if it&#39;s not set, returns default_value.</span></div>
<div class="line"><a id="l01383" name="l01383"></a><span class="lineno"> 1383</span><span class="keyword">const</span> <span class="keywordtype">char</span>* StringFromGTestEnv(<span class="keyword">const</span> <span class="keywordtype">char</span>* flag, <span class="keyword">const</span> <span class="keywordtype">char</span>* default_value) {</div>
<div class="line"><a id="l01384" name="l01384"></a><span class="lineno"> 1384</span><span class="preprocessor">#if defined(GTEST_GET_STRING_FROM_ENV_)</span></div>
<div class="line"><a id="l01385" name="l01385"></a><span class="lineno"> 1385</span>  <span class="keywordflow">return</span> GTEST_GET_STRING_FROM_ENV_(flag, default_value);</div>
<div class="line"><a id="l01386" name="l01386"></a><span class="lineno"> 1386</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l01387" name="l01387"></a><span class="lineno"> 1387</span>  <span class="keyword">const</span> std::string env_var = FlagToEnvVar(flag);</div>
<div class="line"><a id="l01388" name="l01388"></a><span class="lineno"> 1388</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keyword">const</span> value = posix::GetEnv(env_var.c_str());</div>
<div class="line"><a id="l01389" name="l01389"></a><span class="lineno"> 1389</span>  <span class="keywordflow">return</span> value == <span class="keyword">nullptr</span> ? default_value : value;</div>
<div class="line"><a id="l01390" name="l01390"></a><span class="lineno"> 1390</span><span class="preprocessor">#endif  </span><span class="comment">// defined(GTEST_GET_STRING_FROM_ENV_)</span></div>
<div class="line"><a id="l01391" name="l01391"></a><span class="lineno"> 1391</span>}</div>
<div class="line"><a id="l01392" name="l01392"></a><span class="lineno"> 1392</span> </div>
<div class="line"><a id="l01393" name="l01393"></a><span class="lineno"> 1393</span>}  <span class="comment">// namespace internal</span></div>
<div class="line"><a id="l01394" name="l01394"></a><span class="lineno"> 1394</span>}  <span class="comment">// namespace testing</span></div>
<div class="ttc" id="aclass_message_html"><div class="ttname"><a href="class_message.html">Message</a></div><div class="ttdef"><b>Definition</b> gtest-message.h:92</div></div>
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